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Fencer Intel
critical 9.1

CVE-2024-55879 json

XWiki allows RCE from script right in configurable sections

published last yr. modified 4mo ago also EUVD-2024-3502 , GHSA-r279-47wg-chpr

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

XWiki Platform is a generic wiki platform. Starting in version 2.3 and prior to versions 15.10.9, 16.3.0, any user with script rights can perform arbitrary remote code execution by adding instances of `XWiki.ConfigurableClass` to any page. This compromises the confidentiality, integrity and availability of the whole XWiki installation. This has been patched in XWiki 15.10.9 and 16.3.0. No known workarounds are available except upgrading.

Patch / fix

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

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

1.07% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-wh34-m772-5398 referenced PoC, tagged "exploit" by a source, unverified
  • jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-21207 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
GitHub 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:H/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-administration-ui
>=2.3, <15.10.9
>=16.0.0-rc-1, <16.3.0
15.10.9
16.3.0

Affected products

  • xwiki xwiki-platform

Classification

Weakness

References

Sources

Fencer Intel 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.