XWiki allows remote code execution through default value of wiki macro wiki-type parameters

Summary

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.

Timeline

1. Jun 13, 2025, 4:09 PM UTCCVE published
2. Jun 13, 2025, 4:24 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: total

3. Jun 13, 2025, 4:29 PM UTCRecord last updated

Affected versions

• xwiki xwiki-platform

  From 11.10.11 · fixed in 12.0; From 12.6.3 · fixed in 12.7; From 12.8-rc-1 · fixed in 16.4.7; From 16.5.0-rc-1 · fixed in 16.10.3; From 17.0.0-rc-1 · fixed in 17.0.0

• org.xwiki.platform:xwiki-platform-rendering-wikimacro-storeMaven

  From 11.10.11

• org.xwiki.platform:xwiki-platform-rendering-wikimacro-storeMaven

  From 12.6.3

• org.xwiki.platform:xwiki-platform-rendering-wikimacro-storeMaven

  From 12.8-rc-1 · fixed in 16.4.7

• org.xwiki.platform:xwiki-platform-rendering-wikimacro-storeMaven

  From 16.5.0-rc-1 · fixed in 16.10.3

• org.xwiki.platform:xwiki-platform-rendering-wikimacro-storeMaven

  From 17.0.0-rc-1 · fixed in 17.0.0

References 3