What’s Vulnerable › Vulnerabilities

CVE-2024-31988: XWiki Platform CSRF remote code execution through the realtime HTML Converter API

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-04-10 · updated 2026-06-17
• Weakness: CWE-352

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.

Affected products

• xwiki-platform: from 13.9 before 14.10.19; from 15.0 before 15.5.4; from 15.6 before 15.9 — fixed in 14.10.19, 15.5.4, 15.9

How to fix

Upgrade to a fixed version: xwiki-platform 14.10.19, 15.5.4, 15.9. Check the vendor advisory for mitigations.

References

• 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://github.com/xwiki/xwiki-platform/security/advisories/GHSA-r5vh-gc3r-r24w
• https://jira.xwiki.org/browse/XWIKI-21424
• 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://github.com/xwiki/xwiki-platform/security/advisories/GHSA-r5vh-gc3r-r24w
• https://jira.xwiki.org/browse/XWIKI-21424

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