What’s Vulnerable › Vulnerabilities

CVE-2024-55877: XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-12-12 · updated 2026-06-17
• Weakness: CWE-96

Description

XWiki Platform is a generic wiki platform. Starting in version 9.7-rc-1 and prior to versions 15.10.11, 16.4.1, and 16.5.0, any user with an account can perform arbitrary remote code execution by adding instances of `XWiki.WikiMacroClass` to any page. This compromises the confidentiality, integrity and availability of the whole XWiki installation. This vulnerability has been fixed in XWiki 15.10.11, 16.4.1 and 16.5.0. It is possible to manually apply the patch to the page `XWiki.XWikiSyntaxMacrosList` as a workaround.

Affected products

• xwiki-platform: from 9.7 before 15.10.11; from 16.0.0 before 16.4.1; 16.5.0-rc1 — fixed in 15.10.11, 16.4.1

How to fix

Upgrade to a fixed version: xwiki-platform 15.10.11, 16.4.1. Check the vendor advisory for mitigations.

References

• https://github.com/xwiki/xwiki-platform/commit/40e1afe001d61eafdf13f3621b4b597a0e58a3e3
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-2r87-74cx-2p7c
• https://jira.xwiki.org/browse/XWIKI-22030
• https://jira.xwiki.org/browse/XWIKI-22030

Get alerted when CVE-2024-55877 or the next vulnerability affects your stack