XWiki Platform vulnerable to privilege escalation via properties with wiki syntax that are executed with wrong author

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-2023-26474: 0.79% estimated exploitation activity in the next 30 days; percentile 56.20 (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 It's possible to use the right of an existing document content author to execute a text area property. To reproduce: As an admin with programming rights, create a new user without script or programming right. Login with the freshly created user. Insert the following text in source mode in the about section: Click "Save & View" Patches This has been patched in XWiki 14.10, 14.4.7, and 13.10.11. Workarounds No known workaround. References https://jira.xwiki.org/browse/XWIKI-20373 For more information If you have any questions or comments about this advisory: Open an issue in Jira Email us at Security ML

Published by the source

3 Mar 2023, 22:48 UTC

Last modified by the source

3 Mar 2023, 22:48 UTC

Source last checked

26 Oct 2026, 16:10 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-3738-p9x3-mv9r

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# Patch Next advisory brief: CVE-2023-26474

Advisory: XWiki Platform vulnerable to privilege escalation via properties with wiki syntax that are executed with wrong author
IDs: CVE-2023-26474, GHSA-3738-p9x3-mv9r
Record: https://patchnext.com/advisories/cve-2023-26474 (revision 1, source checked 26 Oct 2026, 16:10 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-oldcore 14.10, 14.4.7, 13.10.11; org.xwiki.platform:xwiki-platform-legacy-oldcore 14.10, 14.4.7, 13.10.11. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.xwiki.platform:xwiki-platform-oldcore: affected >= 13.10, < 13.10.11; >= 14.0, < 14.4.7; >= 14.5, < 14.10; fixed in 14.10, 14.4.7, 13.10.11
- Maven org.xwiki.platform:xwiki-platform-legacy-oldcore: affected >= 13.10, < 13.10.11; >= 14.0, < 14.4.7; >= 14.5, < 14.10; fixed in 14.10, 14.4.7, 13.10.11

## Suggested inspection (read-only)
- Maven org.xwiki.platform:xwiki-platform-oldcore: check the installed version with your package manager.
- Maven org.xwiki.platform:xwiki-platform-legacy-oldcore: 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-oldcore, org.xwiki.platform:xwiki-platform-legacy-oldcore.
- 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-3738-p9x3-mv9r (GitHub-reviewed advisory GHSA-3738-p9x3-mv9r lists affected ranges: Maven org.xwiki.platform:xwiki-platform-oldcore >=13.10 =14.0 =14.5 =13.10 =14.0 =14.5 <14.10)

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