UpHeron
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Servers and applications

CVE-2021-44856

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. A title blocked by AbuseFilter can be created via Special:ChangeContentModel due to the mishandling of the EditFilterMergedContent hook return value.

Severity
Medium 5.3
Published
26 Dec 2022
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.35.5, 1.36.3
Sources
NVD

Affected software

SoftwareAffected versions
MediaWikiServers and applications · cpe:a:mediawiki:mediawiki
  • Every version before 1.35.5
  • From 1.36.0 before 1.36.3
  • Version 1.37.0-rc0
  • Version 1.37.0-rc1
  • Version 1.37.0-rc2
  • Version 1.37.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-44856
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-44856