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Fencer Vulns
critical 10.0

CVE-2024-21650 in the critical feed json

XWiki Remote Code Execution vulnerability via user registration

published 2024-01-08 2 y ago modified 2026-09-10 1 mo ago also GHSA-rj7p-xjv7-7229 , EUVD-2024-0417

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
93.5%
EPSS 93.5% chance of exploitation in 30 days, percentile 99.8%
public exploits
0
none known, plus a Nuclei check

Summary

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. XWiki is vulnerable to a remote code execution (RCE) attack through its user registration feature. This issue allows an attacker to execute arbitrary code by crafting malicious payloads in the "first name" or "last name" fields during user registration. This impacts all installations that have user registration enabled for guests. This vulnerability has been patched in XWiki 14.10.17, 15.5.3 and 15.8 RC1.

Patch / fix

  • maven org.xwiki.platform:xwiki-platform-administration-ui 14.10.17, 15.5.3, 15.8-rc-1
  • xwiki xwiki 14.10.17, 15.5.3

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

93.48% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template XWiki < 4.10.20 - Remote code execution nuclei detection template
  • jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-21173 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:N/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.xwiki.platform:xwiki-platform-administration-ui
>=2.2, <14.10.17
>=15.0-rc-1, <15.5.3
>=15.6-rc-1, <15.8-rc-1
14.10.17
15.5.3
15.8-rc-1

Affected products

  • xwiki xwiki-platform

Classification

Weakness
  • CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code
  • 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.