CVE-2024-55877

Name: CVE-2024-55877
Creator: NVD / NIST
Published: 2024-12-12T20:15:21.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.56%

Last modified Jun 17, 2026

CVE-2024-55877 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 1.56% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.56%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Xwiki	Xwiki	>= 9.7, < 15.10.11	—
Xwiki	Xwiki	>= 16.0.0, < 16.4.1	—
Xwiki	Xwiki	16.5.0	Rc1

References

https://github.com/xwiki/xwiki-platform/commit/40e1afe001d61eafdf13f3621b4b597a0e58a3e3Patch
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-2r87-74cx-2p7cVendor Advisory
https://jira.xwiki.org/browse/XWIKI-22030Exploit, Vendor Advisory
https://jira.xwiki.org/browse/XWIKI-22030Exploit, Vendor Advisory

Timeline

Published: Dec 12, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-55877?

How severe is CVE-2024-55877?

CVE-2024-55877 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.56% probability of exploitation in the next 30 days.

How do I fix CVE-2024-55877?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-55877?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST