What’s Vulnerable › Vulnerabilities

CVE-2024-55662: XWiki allows remote code execution through the extension sheet

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% 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 3.3-milestone-1 and prior to versions 15.10.9 and 16.3.0, on instances where `Extension Repository Application` is installed, any user can execute any code requiring `programming` rights on the server. This vulnerability has been fixed in XWiki 15.10.9 and 16.3.0. Since `Extension Repository Application` is not mandatory, it can be safely disabled on instances that do not use it as a workaround. It is also possible to manually apply the patches from commit 8659f17d500522bf33595e402391592a35a162e8 to the page `ExtensionCode.ExtensionSheet` and to the page `ExtensionCode.ExtensionAuthorsDisplayer`.

Affected products

• xwiki-platform: from 3.3 before 15.10.9; from 16.0.0 before 16.3.0 — fixed in 15.10.9, 16.3.0

How to fix

Upgrade to a fixed version: xwiki-platform 15.10.9, 16.3.0. Check the vendor advisory for mitigations.

References

• https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-j2pq-22jj-4pm5
• https://jira.xwiki.org/browse/XWIKI-21890
• https://jira.xwiki.org/browse/XWIKI-21890

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