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NuGet package

umbraco.cms.web.backoffice

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

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 Withdrawn advisories and news are excluded.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

  1. Medium, CVSS 4.9NuGetPublished

    Umbraco Allows a Restricted Editor User to Delete Media Item or Access Unauthorized Content

    CVE-2025-27602 · GHSA-wx5h-wqfq-v698

    Affected
    • NuGet umbraco.cms.web.backoffice <= 10.8.8; >= 11.0.0-rc1, <= 13.7.0
    Fixed in
    10.8.913.7.1· Vendor fix available
    Issue
    Impact Via manipulation of backoffice API URLs it's possible for authenticated backoffice users to retrieve or delete content or media held within folders the editor does not have access to. Patches Will be patched in 10.8.9 and 13.7.1 Workarounds None available.

    Recommended action: Upgrade to 13.7.1 or 10.8.9 by release line, 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. Medium, CVSS 6.1NuGetPublished

    Umbraco CMS Open Redirect Bypass Protection

    CVE-2024-34071 · GHSA-j74q-mv2c-rxmp

    Affected
    • NuGet umbraco.cms.web.backoffice >= 8.18.5, < 8.18.14; >= 10.5.0, < 10.8.6; >= 12.0.0, < 12.3.10; >= 13.0.0, < 13.3.1
    Fixed in
    10.8.612.3.1013.3.18.18.14· Vendor fix available
    Issue
    Impact Umbraco have an endpoint that is vulnerable to open redirects. The endpoint is protected so it requires the user to be signed into backoffice, before the vulnerability is exposed. Affected Version \= 8.18.5, = 10.5.0, = 12.0.0, = 13.0.0 Patches 8.18.14, 10.8.6, 12.3.10, 13.3.1

    Recommended action: Upgrade to 13.3.1, 12.3.10, 10.8.6 or 8.18.14 by release line, 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. Medium, CVSS 4.1NuGetPublished

    Blind SSRF Leads to Port Scan by using Webhooks

    CVE-2024-29035 · GHSA-74p6-39f2-23v3

    Affected
    • NuGet umbraco.cms.web.backoffice >= 13.0.0, < 13.1.1
    Fixed in
    13.1.1· Vendor fix available
    Issue
    Impact Failing webhooks logs are available when solution is not in debug mode. Those logs can contain information that is critical. Affected Versions Umbraco versions 13.0.0 - 13.1.1 Patches 13.1.1 Workarounds Disabling webhooks functionality.

    Recommended action: Upgrade to 13.1.1 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. High, CVSS 7.5NuGetPublished

    Umbraco allows possible Admin-level access to backoffice without Auth under rare conditions

    CVE-2023-37267 · GHSA-h8wc-r4jh-mg7m

    Affected
    • NuGet umbraco.cms.web.backoffice >= 9.0.0, < 10.6.1; >= 11.0.0, < 11.4.2; >= 12.0.0, <= 12.0.0
    Fixed in
    10.6.111.4.212.0.1· Vendor fix available
    Issue
    Under rare conditions, a restart of Umbraco can allow unauthorized users to gain admin-level permissions. Impact An unauthorized user gaining admin-level access and permissions to the backoffice. Patches 10.6.1, 11.4.2, 12.0.1 Workarounds Enabling the Unattended Install feature will mean the vulnerability is not exploitable. Enabling IP restrictions to /install/ and /umbraco/ will limit the exposure to allowed IP addresses.

    Recommended action: Upgrade to 12.0.1, 11.4.2 or 10.6.1 by release line, 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 →