CVE-2022-29251 — XWiki Platform Flamingo Theme UI is a tool that allows customization and preview

XWiki Platform Flamingo Theme UI is a tool that allows customization and preview of any Flamingo-based skin. Starting with versions 6.2.4 and 6.3-rc-1, a possible cross-site scripting vector is present in the `FlamingoThemesCode.WebHomeSheet` wiki page related to the "newThe

01What is this vulnerability?

XWiki Platform Flamingo Theme UI is a tool that allows customization and preview of any Flamingo-based skin. Starting with versions 6.2.4 and 6.3-rc-1, a possible cross-site scripting vector is present in the `FlamingoThemesCode.WebHomeSheet` wiki page related to the "newThemeName" form field. The issue is patched in versions 12.10.11, 14.0-rc-1, 13.4.7, and 13.10.3. The easiest available…

02Affected products

Vendor	Product	Versions
xwiki	xwiki	platform — >= 6.2.4, < 12.10.11, >= 13.0, < 13.4.7, >= 13.5, < 13.10.3

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-05-25T20:55:22.000Z
• Last modified: 2025-04-23T18:21:32.527Z

09References

• github.com — https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-vmhh-xh3g-j992
• github.com — https://github.com/xwiki/xwiki-platform/commit/bd935320bee3c27cf7548351b1d0f935f…
• jira.xwiki.org — https://jira.xwiki.org/browse/XWIKI-19294