CVE-2023-26477

XWiki Platform is a generic wiki platform. Starting in versions 6.3-rc-1 and 6.2.4, it's possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the `newThemeName` request parameter (URL parameter), in combination with additional parameters. This has been patched in the supported versions 13.10.10, 14.9-rc-1, and 14.4.6. As a workaround, it is possible to edit `FlamingoThemesCode.WebHomeSheet` and manually perform the changes from the patch fixing the issue.

• CWE-95
• CWE-94

• https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284Patch
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-x2qm-r4wx-8gpgExploit, Vendor Advisory
• https://jira.xwiki.org/browse/XWIKI-19757Exploit, Issue Tracking, Vendor Advisory
• https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284Patch
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-x2qm-r4wx-8gpgExploit, Vendor Advisory
• https://jira.xwiki.org/browse/XWIKI-19757Exploit, Issue Tracking, Vendor Advisory

Published

Mar 2, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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