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baserproject/basercms

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

Open advisories

49 actionable advisories, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 7.1PackagistPublished

    baserCMS is Vulnerable to Cross-site Scripting

    CVE-2026-32734 · GHSA-677c-xv24-crgx

    Affected
    • Packagist baserproject/basercms <= 5.2.2
    Fixed in
    5.2.3· Vendor fix available
    Issue
    baserCMS has DOM-based cross-site scripting in tag creation. Target baserCMS 5.2.2 and earlier versions Vulnerability Malicious JavaScript may be executed when creating a tag. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN94952030 Credits - quanlna2 (Le Nguyen Anh Quan) - namdi (Do Ich Nam) - minhnn42 (Nguyen Ngoc Minh) - VCSLab - Viettel Cyber Security

    Recommended action: Upgrade to 5.2.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  2. High, CVSS 7.2PackagistPublished

    baserCMS Path Traversal Leads to Arbitrary File Write and RCE via Theme File API

    CVE-2026-30940 · GHSA-c5c6-37vq-pjcq

    Affected
    • Packagist baserproject/basercms <= 5.2.2
    Fixed in
    5.2.3· Vendor fix available
    Issue
    A path traversal vulnerability exists in the baserCMS 5.x theme file management API (/baser/api/admin/bc-theme-file/themefiles/add.json) that allows arbitrary file write. An authenticated administrator can include ../ sequences in the path parameter to create a PHP file in an arbitrary directory outside the theme directory, which may result in remote code execution (RCE). Affected Code File: plugins/bc-theme-file/src/Service/BcThemeFileService.php Attack Scenario 1. The attacker compromises an administrator account (password leak, brute force, etc.) 2. Obtains an access token via API login 3. Specifies path: "../../../../webroot/" in the theme file creation API 4. A PHP file is created in the webroot 5. The attacker accesses the created PHP file to achieve RCE Reproduction Steps Vulnerability Details | Item | Details | |------|---------| | CWE | CWE-22: Path Traversal, CWE-73: External Control of File Name or Path | | Impact | Arbitrary file write, Remote Code Execution (RCE)…

    Recommended action: Upgrade to 5.2.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  3. Critical, CVSS 9.2PackagistPublished

    baserCMS has OS command injection vulnerability in installer

    CVE-2026-30880 · GHSA-6hpg-8rx3-cwgv

    Affected
    • Packagist baserproject/basercms <= 5.2.2
    Fixed in
    5.2.3· Vendor fix available
    Issue
    baserCMS has an OS command injection vulnerability in the installer. Target baserCMS 5.2.2 and earlier versions Vulnerability If baserCMS is placed on a server but not installed, malicious commands may be executed. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN54513170 Credits REN XINGDIAN

    Recommended action: Upgrade to 5.2.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  4. Medium, CVSS 6.9PackagistPublished

    baserCMS has a cross-site scripting vulnerability in blog posts

    CVE-2026-30879 · GHSA-jmq3-x8q7-j9qm

    Affected
    • Packagist baserproject/basercms <= 5.2.2
    Fixed in
    5.2.3· Vendor fix available
    Issue
    baserCMS has a cross-site scripting vulnerability in blog posts. Target baserCMS 5.2.1 and earlier versions Vulnerability Malicious Javascript may be executed in blog posts. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN20837860 Credits Gai Tanaka@Mitsui Bussan Secure Directions, Inc.

    Recommended action: Upgrade to 5.2.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  5. Medium, CVSS 5.3PackagistPublished

    baserCMS has Mail Form Acceptance Bypass via Public API

    CVE-2026-30878 · GHSA-8cr7-r8qw-gp3c

    Affected
    • Packagist baserproject/basercms <= 5.2.2
    Fixed in
    5.2.3· Vendor fix available
    Issue
    A public mail submission API allows unauthenticated users to submit mail form entries even when the corresponding form is not accepting submissions. This bypasses administrative controls intended to stop form intake and enables spam or abuse via the API. Details In baserCMS, mail form submissions through the front-end UI are guarded by acceptance checks implemented in MailFrontService::isAccepting(), which ensures that the mail form is currently accepting submissions (e.g. within its configured publish/acceptance window). These checks are enforced in the UI flow handled by MailController::index() and MailController::confirm() (e.g. plugins/bc-mail/src/Controller/MailController.php). However, the public API endpoint: plugins/bc-mail/src/Controller/Api/MailMessagesController.php::add() does not invoke MailFrontService::isAccepting() and does not verify whether the mail form is currently accepting submissions. As a result, the API accepts submissions regardless of the form’s…

    Recommended action: Upgrade to 5.2.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  6. Critical, CVSS 9.1PackagistPublished

    baserCMS Update Functionality Vulnerable to OS Command Injection

    CVE-2026-30877 · GHSA-m9g7-rgfc-jcm7

    Affected
    • Packagist baserproject/basercms <= 5.2.2
    Fixed in
    5.2.3· Vendor fix available
    Issue
    The latest version of baserCMS (basercms-5.2.2) contains an OS command injection vulnerability (CWE-78) in its update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. Details Please refer to the attached materials. OSコマンドインジェクション(baserCMSのアップデート機能).pdf Impact An authenticated user with administrator privileges in baserCMS can execute OS commands on the server with the privileges of the user account running baserCMS.

    Recommended action: Upgrade to 5.2.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  7. Medium, CVSS 6.9PackagistPublished

    baserCMS has an SQL injection vulnerability in its blog post functionality

    CVE-2026-27697 · GHSA-vh89-rjph-2g7p

    Affected
    • Packagist baserproject/basercms <= 5.2.2
    Fixed in
    5.2.3· Vendor fix available
    Issue
    baserCMS has a SQL injection vulnerability in blog posts. Target baserCMS 5.2.2 and earlier versions Vulnerability Malicious SQL may be executed in blog posts. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN52157568 Credits Mirai Matsumoto@Future Secure Wave, Inc.

    Recommended action: Upgrade to 5.2.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  8. Critical, CVSS 9.1PackagistPublished

    baserCMS has OS Command Injection Leading to Remote Code Execution (RCE)

    CVE-2026-21861 · GHSA-qxmc-6f24-g86g

    Affected
    • Packagist baserproject/basercms <= 5.2.2
    Fixed in
    5.2.3· Vendor fix available
    Issue
    In the core update functionality of baserCMS, some parameters sent from the admin panel are passed to the exec() function without proper validation or escaping. This issue allows an authenticated CMS administrator to execute arbitrary OS commands on the server (Remote Code Execution, RCE). This vulnerability is not a UI-level issue such as screen manipulation or lack of CSRF protection, but rather stems from a design that directly executes input values received on the server side as OS commands. Therefore, even if buttons are hidden in the UI, or even if CakePHP's CSRF/FormProtection (SecurityComponent) ensures that only legitimate POST requests are accepted, an attack is possible as long as a request containing a valid token is processed within an administrator session. --- Vulnerability Information | Item | Details | | ---- | ------- | | CWE | CWE-78: Improper Neutralization of Special Elements used in an OS Command | | Impact | Remote Code Execution (RCE) | | Severity |…

    Recommended action: Upgrade to 5.2.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  9. High, CVSS 8.7PackagistPublished

    baserCMS has Unsafe File Upload Leading to Remote Code Execution (RCE)

    CVE-2025-32957 · GHSA-hv78-cwp4-8r7r

    Affected
    • Packagist baserproject/basercms <= 5.2.2
    Fixed in
    5.2.3· Vendor fix available
    Issue
    Details The application's restore function allows users to upload a .zip file, which is then automatically extracted. A PHP file inside the archive is included using requireonce without validating or restricting the filename. An attacker can craft a malicious PHP file within the zip and achieve arbitrary code execution when it is included. Vector: Malicious ZIP upload + insecure requireonce PoC 1. Restore backup 1. Load file shell (insecure requireonce) Impact Remote Code Execution (RCE)

    Recommended action: Upgrade to 5.2.3 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  10. Medium, CVSS 5.2PackagistPublished

    baserCMS has a Cross-site Scripting (XSS) Vulnerability in Edit Email Form Settings Feature

    CVE-2024-46998 · GHSA-p3m2-mj3j-j49x

    Affected
    • Packagist baserproject/basercms <= 5.1.1
    Fixed in
    5.1.2· Vendor fix available
    Issue
    XSS vulnerability in Edit Email Form Settings Feature to baserCMS. Target baserCMS 5.1.1 and earlier versions Vulnerability Malicious code may be executed in Edit Email Form Settings feature. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN00876083 Credits Ayato Shitomi@Fore-Z

    Recommended action: Upgrade to 5.1.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  11. Medium, CVSS 5.2PackagistPublished

    baserCMS has a Cross-site Scripting (XSS) Vulnerability in Blog posts Feature

    CVE-2024-46996 · GHSA-66jv-qrm3-vvfg

    Affected
    • Packagist baserproject/basercms <= 5.1.1
    Fixed in
    5.1.2· Vendor fix available
    Issue
    XSS vulnerability in Blog posts feature to baserCMS. Target baserCMS 5.1.1 and earlier versions Vulnerability Malicious code may be executed in Blog posts feature. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN00876083 Credits Ayato Shitomi@Fore-Z

    Recommended action: Upgrade to 5.1.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  12. Medium, CVSS 6.1PackagistPublished

    baserCMS has a Cross-site Scripting (XSS) Vulnerability in HTTP 400 Bad Request

    CVE-2024-46995 · GHSA-mr7q-fv7j-jcgv

    Affected
    • Packagist baserproject/basercms <= 5.1.1
    Fixed in
    5.1.2· Vendor fix available
    Issue
    XSS vulnerability in HTTP 400 Bad Request to baserCMS. Target baserCMS 5.1.1 and earlier versions Vulnerability Malicious code may be executed in HTTP 400 Bad Request. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN00876083

    Recommended action: Upgrade to 5.1.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  13. Medium, CVSS 5.4PackagistPublished

    baserCMS has a Cross-site Scripting (XSS) Vulnerability in Blog posts and Contents list Feature

    CVE-2024-46994 · GHSA-wrjc-fmfq-w3jr

    Affected
    • Packagist baserproject/basercms <= 5.1.1
    Fixed in
    5.1.2· Vendor fix available
    Issue
    XSS vulnerability in Blog posts and Contents list Feature to baserCMS. Target baserCMS 5.1.1 and earlier versions Vulnerability Malicious code may be executed in Blog posts and Contents list feature. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN00876083 Credits Kyohei Ota@LEON TECHNOLOGY,Inc.

    Recommended action: Upgrade to 5.1.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  14. Medium, CVSS 6.1PackagistPublished

    baserCMS Cross-site Scripting vulnerability in Site search Feature

    CVE-2023-44379 · GHSA-66c2-p8rh-qx87

    Affected
    • Packagist baserproject/basercms < 5.0.9
    Fixed in
    5.0.9· Vendor fix available
    Issue
    There is a XSS Vulnerability in Site search Feature to baserCMS. Target baserCMS 5.0.8 and earlier versions Vulnerability Malicious code may be executed in Site search Feature. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN73283159

    Recommended action: Upgrade to 5.0.9 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  15. Medium, CVSS 5.6PackagistPublished

    baserCMS OS command injection vulnerability in Installer

    CVE-2023-51450 · GHSA-77fc-4cv5-hmfr

    Affected
    • Packagist baserproject/basercms < 5.0.9
    Fixed in
    5.0.9· Vendor fix available
    Issue
    There is a OS command injection in Installer Feature to baserCMS. Target baserCMS 5.0.8 and earlier versions Vulnerability Malicious command may be executed in Installer. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN73283159

    Recommended action: Upgrade to 5.0.9 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  16. Medium, CVSS 5.4PackagistPublished

    baserCMS Cross-site Scripting vulnerability in Content Management

    CVE-2024-26128 · GHSA-jjxq-m8h3-4vw5

    Affected
    • Packagist baserproject/basercms < 5.0.9
    Fixed in
    5.0.9· Vendor fix available
    Issue
    There is a XSS Vulnerability in Content Management Feature to baserCMS. Target baserCMS 5.0.8 and earlier versions Vulnerability Malicious code may be executed in Content Management Feature. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN73283159

    Recommended action: Upgrade to 5.0.9 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  17. Medium, CVSS 4.7PackagistPublished

    baserCMS CSRF vulnerability in Content preview Feature

    CVE-2023-43649 · GHSA-fw9x-cqjq-7jx5

    Affected
    • Packagist baserproject/basercms < 4.8.0
    Fixed in
    4.8.0· Vendor fix available
    Issue
    There is a CSRF Vulnerability in Content preview Feature to baserCMS. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. If you are eligible, please update to the new version as soon as possible. Target baserCMS 4.7.8 and earlier versions Vulnerability Malicious code may be executed in Content preview Feature. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN45547161 Credits Shiga Takuma@BroadBand Security, Inc

    Recommended action: Upgrade to 4.8.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  18. Medium, CVSS 4.9PackagistPublished

    baserCMS Directory Traversal vulnerability in Form submission data management Feature

    CVE-2023-43648 · GHSA-hmqj-gv2m-hq55

    Affected
    • Packagist baserproject/basercms < 4.8.0
    Fixed in
    4.8.0· Vendor fix available
    Issue
    There is a Directory Traversal Vulnerability in Form submission data management Feature to baserCMS. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. If you are eligible, please update to the new version as soon as possible. Target baserCMS 4.7.8 and earlier versions Vulnerability There is a possibility that information on the server may be obtained by a user who is logged in to the management screen. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN45547161 Credits Shiga Takuma@BroadBand Security, Inc

    Recommended action: Upgrade to 4.8.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  19. Medium, CVSS 6.1PackagistPublished

    baserCMS Cross-site Scripting vulnerability in File upload Feature

    CVE-2023-43647 · GHSA-ggj4-78rm-6xgv

    Affected
    • Packagist baserproject/basercms < 4.8.0
    Fixed in
    4.8.0· Vendor fix available
    Issue
    There is a XSS Vulnerability in File upload Feature to baserCMS. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. If you are eligible, please update to the new version as soon as possible. Target baserCMS 4.7.8 and earlier versions Vulnerability Malicious code may be executed in File upload Feature. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN45547161 Credits Shiga Takuma@BroadBand Security, Inc

    Recommended action: Upgrade to 4.8.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  20. Medium, CVSS 6.1PackagistPublished

    baserCMS Cross-site Scripting Vulnerability in Favorites Feature

    CVE-2023-29009 · GHSA-8vqx-prq4-rqrq

    Affected
    • Packagist baserproject/basercms < 4.8.0
    Fixed in
    4.8.0· Vendor fix available
    Issue
    There is a XSS Vulnerability in Favorites Feature to baserCMS. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. If you are eligible, please update to the new version as soon as possible. Target baserCMS 4.7.8 and earlier versions Vulnerability Malicious code could be executed in the Favorites feature on the server. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN45547161 Credits ota kyohei

    Recommended action: Upgrade to 4.8.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  21. Critical, CVSS 9.8PackagistPublished

    baserCMS allows any file to be uploaded

    CVE-2023-25655 · GHSA-mfvg-qwcw-qvc8

    Affected
    • Packagist baserproject/basercms < 4.7.5
    Fixed in
    4.7.5· Vendor fix available
    Issue
    There is a vulnerability that allows uploading any files to baserCMS. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. If you are eligible, please update to the new version as soon as possible. Target baserCMS 4.7.3 and earlier versions Vulnerability Malicious files may be uploaded in Upload File Management. Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN61105618 Credits - Taisei Inoue@GMO Cybersecurity by Ierae, Inc. - Yusuke Akagi@Mitsui Bussan Secure Directions, Inc.

    Recommended action: Upgrade to 4.7.5 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  22. Critical, CVSS 9.8PackagistPublished

    baserCMS File Uploader Remote Code Execution (RCE) vulnerability

    CVE-2023-25654 · GHSA-h4cc-fxpp-pgw9

    Affected
    • Packagist baserproject/basercms < 4.7.5
    Fixed in
    4.7.5· Vendor fix available
    Issue
    Impact There is a Remote Code Execution (RCE) Vulnerability on the management system of baserCMS. Target baserCMS 4.7.3 and earlier versions Patches Update to the latest version of baserCMS Credits 島峰泰平@三井物産セキュアディレクション株式会社

    Recommended action: Upgrade to 4.7.5 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  23. Medium, CVSS 4.8PackagistPublished

    baserCMS vulnerable to stored Cross-site Scripting

    CVE-2022-41994 · GHSA-vxwf-79ch-f7f7

    Affected
    • Packagist baserproject/basercms < 4.7.2
    Fixed in
    4.7.2· Vendor fix available
    Issue
    Stored cross-site scripting vulnerability in Permission Settings of baserCMS versions prior to 4.7.2 allows a remote authenticated attacker with an administrative privilege to inject an arbitrary script.

    Recommended action: Upgrade to 4.7.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  24. Medium, CVSS 4.8PackagistPublished

    baserCMS vulnerable to stored Cross-site Scripting

    CVE-2022-42486 · GHSA-7w2v-35j3-xrm9

    Affected
    • Packagist baserproject/basercms < 4.7.2
    Fixed in
    4.7.2· Vendor fix available
    Issue
    Stored cross-site scripting vulnerability in User group management of baserCMS versions prior to 4.7.2 allows a remote authenticated attacker with an administrative privilege to inject an arbitrary script.

    Recommended action: Upgrade to 4.7.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  25. Medium, CVSS 4.6PackagistPublished

    baserproject/basercms vulnerable to cross-site scripting (XSS) vulnerability

    CVE-2022-39325 · GHSA-395x-wv32-44v5

    Affected
    • Packagist baserproject/basercms <= 4.7.1
    Fixed in
    4.7.2· Vendor fix available
    Issue
    There is a cross-site scripting vulnerability on the management system of baserCMS. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. If you are eligible, please update to the new version as soon as possible. Target baserCMS 4.7.1 and earlier versions. Vulnerability Execution of malicious JavaScript code may alter the display of the page or leak cookie information. - In Favorite registration (CVE-2022-39325) - In Permission Settings (CVE-2022-41994) - In User group management (CVE-2022-42486) Countermeasures Update to the latest version of baserCMS Credits - Shogo Iyota@Mitsui Bussan Secure Directions, Inc. - YUYA KOTAKE@CARTA HOLDINGS, INC.

    Recommended action: Upgrade to 4.7.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →