Code injection via unescaped translations in xwiki-platform

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

9.9 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

• CVE-2023-29510: 1.86% estimated exploitation activity in the next 30 days; percentile 79.30 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact In XWiki, every user can add translations that are only applied to the current user. This also allows overriding existing translations. Such translations are often included in privileged contexts without any escaping which allows remote code execution for any user who has edit access on at least one document which could be the user's own profile where edit access is enabled by default. The following describes a proof of concept exploit to demonstrate this vulnerability: 1. Edit the user profile with the wiki editor and set the content to 2. Use the object editor to add an object of type XWiki.TranslationDocumentClass with scope USER. 3. Open the document WikiManager.AdminWikiDescriptorSheet. The expected result would be that a message with title {{/html}} {{async async="true" cached="false" context="doc.reference"}}{{groovy}}println("hello from groovy!"){{/groovy}}{{/async}} is displayed while in fact an error that the HTML macro couldn't be executed is displayed, followed by…

Published by the source

19 Apr 2023, 18:26 UTC

Last modified by the source

12 Nov 2023, 05:02 UTC

Source last checked

26 Oct 2026, 16:19 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-4v38-964c-xjmw

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# Patch Next advisory brief: CVE-2023-29510

Advisory: Code injection via unescaped translations in xwiki-platform
IDs: CVE-2023-29510, GHSA-4v38-964c-xjmw
Record: https://patchnext.com/advisories/cve-2023-29510 (revision 1, source checked 26 Oct 2026, 16:19 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.xwiki.platform:xwiki-platform-administration-ui 14.10.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.xwiki.platform:xwiki-platform-administration-ui: affected >= 4.3-milestone-2, < 14.10.2; fixed in 14.10.2

## Suggested inspection (read-only)
- Maven org.xwiki.platform:xwiki-platform-administration-ui: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.xwiki.platform:xwiki-platform-administration-ui.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-4v38-964c-xjmw (GitHub-reviewed advisory GHSA-4v38-964c-xjmw lists affected ranges: Maven org.xwiki.platform:xwiki-platform-administration-ui >=4.3-milestone-2 <14.10.2)

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