CVE-2025-49581: XWiki

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

XWiki is a generic wiki platform. Any user with edit right on a page (could be the user's profile) can execute code (Groovy, Python, Velocity) with programming right by defining a wiki macro. This allows full access to the whole XWiki installation. The main problem is that if a wiki macro parameter allows wiki syntax, its default value is executed with the rights of the author of the document where it is used. This can be exploited by overriding a macro like the children macro that is used in a page that has programming right like the page XWiki.ChildrenMacro and thus allows arbitrary script macros. This vulnerability has been patched in XWiki 16.4.7, 16.10.3 and 17.0.0 by executing wiki parameters with the rights of the wiki macro's author when the parameter's value is the default value.

Affected products

• XWiki XWiki: from 11.10.11, before 12.0 (fixed in 12.0); from 12.6.3, before 12.7 (fixed in 12.7); from 12.8, before 16.4.7 (fixed in 16.4.7); from 16.5.0, before 16.10.3 (fixed in 16.10.3); version 17.0.0 only

Published 2025-06-13. Last modified 2026-06-17.