CVE-2023-29207

Workarounds

It is possible to apply the patch to existing installations without upgrading. Only the files skins/flamingo/macros.vm and templates/macros.vm in the web application directory need to be replaced by a patched version.

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

The Livetable Macro wasn't properly sanitizing column names, thus allowing the insertion of raw HTML code including JavaScript. This vulnerability was also exploitable via the Documents Macro that is included since XWiki 3.5M1 and doesn't require script rights, this can be demonstrated with the syntax {{documents id="example" count="5" actions="false" columns="doc.title, before<script>alert(1)</script>after"/}}. Therefore, this can also be exploited by users without script right and in comments. With the interaction of a user with more rights, this could be used to execute arbitrary actions in the wiki, including privilege escalation, remote code execution, information disclosure, modifying or deleting content.

Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.

CVE-2023-29207 has a CVSS score of 8.9 (High). The vector is network-reachable, low privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (13.10.10, 14.4.6, 14.9); upgrading removes the vulnerable code path.

Kodem intelligence

This has been patched in XWiki 14.9, 14.4.6, and 13.10.10.

1. What is CVE-2023-29207? CVE-2023-29207 is a high-severity cross-site scripting (XSS) vulnerability in org.xwiki.platform:xwiki-platform-flamingo-skin-resources (maven), affecting versions >= 1.9-milestone-2, < 13.10.10. It is fixed in 13.10.10, 14.4.6, 14.9. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
2. How severe is CVE-2023-29207? CVE-2023-29207 has a CVSS score of 8.9 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which packages are affected by CVE-2023-29207?
   • org.xwiki.platform:xwiki-platform-flamingo-skin-resources (maven) (versions >= 1.9-milestone-2, < 13.10.10)
   • org.xwiki.platform:xwiki-platform-flamingo-skin (maven) (versions >= 1.9-milestone-2, < 13.10.10)
   • org.xwiki.platform:xwiki-platform-flamingo (maven) (versions >= 1.9-milestone-2, < 13.10.10)
   • org.xwiki.platform:xwiki-platform-web-templates (maven) (versions >= 1.9-milestone-2, < 13.10.10)
   • org.xwiki.platform:xwiki-platform-web (maven) (versions >= 1.9-milestone-2, < 13.10.10)
   • org.xwiki.platform:xwiki-web-standard (maven) (versions >= 1.9-milestone-2, < 13.10.10)
4. Is there a fix for CVE-2023-29207? Yes. CVE-2023-29207 is fixed in 13.10.10, 14.4.6, 14.9. Upgrade to this version or later.
5. Is CVE-2023-29207 exploitable, and should I be worried? Whether CVE-2023-29207 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2023-29207 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2023-29207?
   • Upgrade org.xwiki.platform:xwiki-platform-flamingo-skin-resources to 13.10.10 or later
   • Upgrade org.xwiki.platform:xwiki-platform-flamingo-skin to 13.10.10 or later
   • Upgrade org.xwiki.platform:xwiki-platform-flamingo to 13.10.10 or later
   • Upgrade org.xwiki.platform:xwiki-platform-web-templates to 13.10.10 or later
   • Upgrade org.xwiki.platform:xwiki-platform-web to 13.10.10 or later
   • Upgrade org.xwiki.platform:xwiki-web-standard to 13.10.10 or later
   • Upgrade org.xwiki.platform:xwiki-platform-flamingo-skin-resources to 14.4.6 or later
   • Upgrade org.xwiki.platform:xwiki-platform-flamingo-skin to 14.4.6 or later
   • Upgrade org.xwiki.platform:xwiki-platform-flamingo to 14.4.6 or later
   • Upgrade org.xwiki.platform:xwiki-platform-web-templates to 14.4.6 or later
   • Upgrade org.xwiki.platform:xwiki-platform-web to 14.4.6 or later
   • Upgrade org.xwiki.platform:xwiki-web-standard to 14.4.6 or later
   • Upgrade org.xwiki.platform:xwiki-platform-flamingo-skin-resources to 14.9 or later
   • Upgrade org.xwiki.platform:xwiki-platform-flamingo-skin to 14.9 or later
   • Upgrade org.xwiki.platform:xwiki-platform-flamingo to 14.9 or later
   • Upgrade org.xwiki.platform:xwiki-platform-web-templates to 14.9 or later
   • Upgrade org.xwiki.platform:xwiki-platform-web to 14.9 or later
   • Upgrade org.xwiki.platform:xwiki-web-standard to 14.9 or later