Vulnerability CVE-2024-31988
Published: 2024-04-10

Description:
XWiki Platform is a generic wiki platform. Starting in version 13.9-rc-1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, when the realtime editor is installed in XWiki, it allows arbitrary remote code execution with the interaction of an admin user with programming right. More precisely, by getting an admin user to either visit a crafted URL or to view an image with this URL that could be in a comment, the attacker can get the admin to execute arbitrary XWiki syntax including scripting macros with Groovy or Python code. This compromises the confidentiality, integrity and availability of the whole XWiki installation. This vulnerability has been patched in XWiki 14.10.19, 15.5.4 and 15.9. As a workaround, one may update `RTFrontend.ConvertHTML` manually with the patch. This will, however, break some synchronization processes in the realtime editor, so upgrading should be the preferred way on installations where this editor is used.

 References:
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-r5vh-gc3r-r24w
https://github.com/xwiki/xwiki-platform/commit/4896712ee6483da623f131be2e618f1f2b79cb8d
https://github.com/xwiki/xwiki-platform/commit/9f8cc88497418750b09ce9fde5d67d840f038fbf
https://github.com/xwiki/xwiki-platform/commit/d88da4572fb7d4f95e1f54bb0cce33fce3df08d9
https://github.com/xwiki/xwiki-platform/commit/d9f5043da289ff106f08e23576746fd8baf98794
https://jira.xwiki.org/browse/XWIKI-21424
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