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Fencer Vulns
critical 10.0

CVE-2024-55662 json

XWiki allows remote code execution through the extension sheet

published 2024-12-12 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-3481 , GHSA-j2pq-22jj-4pm5

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

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`.

Patch / fix

  • maven org.xwiki.platform:xwiki-platform-repository-server-ui 15.10.9, 16.3.0
  • org.xwiki.platform xwiki-platform-repository-server-ui 15.10.9, 16.3.0
  • xwiki xwiki 15.10.9, 16.3.0

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
22 mo ago

Exploit prediction

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-21890 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
GitHub 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.xwiki.platform:xwiki-platform-repository-server-ui
>=3.3-milestone-1, <15.10.9
>=16.0.0-rc-1, <16.3.0
15.10.9
16.3.0

Affected products

  • xwiki xwiki-platform

Classification

Weakness
  • CWE-96 Improper Neutralization of Directives in Statically Saved Code
  • CWE-863 Incorrect Authorization
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.