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Fencer Intel
critical 10.0

CVE-2024-55877 json

XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList

published last yr. modified 4mo ago also EUVD-2024-3411 , GHSA-2r87-74cx-2p7c

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.xwiki.platform:xwiki-platform-help-ui 15.10.11, 16.4.1, 16.5.0
  • org.xwiki.platform xwiki-platform-help-ui 15.10.11, 16.4.1, 16.5.0
  • xwiki xwiki 15.10.11, 16.4.1, 16.5.0

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CISA SSVC

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

Exploit prediction

1.60% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-22030 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-help-ui
>=9.7-rc-1, <15.10.11
>=16.0.0-rc-1, <16.4.1
>=16.5.0-rc-1, <16.5.0
15.10.11
16.4.1
16.5.0

Affected products

  • xwiki xwiki-platform

Classification

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

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.