What’s Vulnerable › Vulnerabilities

CVE-2022-29251: Cross-site Scripting in the Flamingo theme manager

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-25 · updated 2026-06-17
• Weakness: CWE-80

Description

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 workaround is to edit the wiki page `FlamingoThemesCode.WebHomeSheet` (with wiki editor) according to the suggestion provided in the GitHub Security Advisory.

Affected products

• xwiki-platform: from 6.2.4 before 12.10.11; from 13.0 before 13.4.7; from 13.5 before 13.10.3 — fixed in 12.10.11, 13.10.3, 13.4.7

How to fix

Upgrade to a fixed version: xwiki-platform 12.10.11, 13.10.3, 13.4.7. Check the vendor advisory for mitigations.

References

• https://github.com/xwiki/xwiki-platform/commit/bd935320bee3c27cf7548351b1d0f935f116d437
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-vmhh-xh3g-j992
• https://jira.xwiki.org/browse/XWIKI-19294
• https://github.com/xwiki/xwiki-platform/commit/bd935320bee3c27cf7548351b1d0f935f116d437
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-vmhh-xh3g-j992
• https://jira.xwiki.org/browse/XWIKI-19294

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