XWiki Platform may allow privilege escalation to programming rights via user's first name

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-2023-26055: 1.16% estimated exploitation activity in the next 30 days; percentile 67.29 (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 Any user can edit his own profile and inject code which is going to be executed with programming right. Steps to reproduce: Set your first name to The first name appears as interpreted "Hello from groovy" instead of the expected fully escaped "{{cache id="userProfile"}}{{groovy}}println("Hello from groovy!"){{/groovy}}{{/cache}}". The same vulnerability can also be exploited in all other places where short text properties are displayed, e.g., in apps created using Apps Within Minutes that use a short text field. Patches The problem has been patched on versions 13.10.9, 14.4.4, 14.7RC1. Workarounds There are no other workarounds than upgrading XWiki or patching the xwiki-commons-xml JAR file. References https://jira.xwiki.org/browse/XWIKI-19793 https://jira.xwiki.org/browse/XWIKI-19794 https://jira.xwiki.org/browse/XCOMMONS-2498 For more information If you have any questions or comments about this advisory: Open an issue in Jira XWiki.org Email us at Security Mailing List

Published by the source

3 Mar 2023, 22:49 UTC

Last modified by the source

3 Mar 2023, 22:49 UTC

Source last checked

26 Oct 2026, 16:10 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-8cw6-4r32-6r3h

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2023-26055

Advisory: XWiki Platform may allow privilege escalation to programming rights via user's first name
IDs: CVE-2023-26055, GHSA-8cw6-4r32-6r3h
Record: https://patchnext.com/advisories/cve-2023-26055 (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.commons:xwiki-commons-xml 14.7-rc-1, 14.4.4, 13.10.9. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.xwiki.commons:xwiki-commons-xml: affected >= 3.1-milestone-1, < 13.10.9; >= 14.0-rc-1, < 14.4.4; >= 14.5, < 14.7-rc-1; fixed in 14.4.4, 13.10.9, 14.7-rc-1

## Suggested inspection (read-only)
- Maven org.xwiki.commons:xwiki-commons-xml: 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.commons:xwiki-commons-xml.
- 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-8cw6-4r32-6r3h (GitHub-reviewed advisory GHSA-8cw6-4r32-6r3h lists affected ranges: Maven org.xwiki.commons:xwiki-commons-xml >=3.1-milestone-1 =14.0-rc-1 =14.5 <14.7-rc-1)

Commands are suggestions: review each one before running it.