Cyber Resilience

CVE-2021-36126

CriticalPublic PoC

Published: 02 July 2021

Published
02 July 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0034 57.0th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-36126 is a critical-severity an unspecified weakness vulnerability in Mediawiki Mediawiki. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 43.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

An issue was discovered in the AbuseFilter extension in MediaWiki through 1.36. If the MediaWiki:Abusefilter-blocker message is invalid within the content language, the filter user falls back to the English version, but that English version could also be invalid on…

more

a wiki. This would result in a fatal error, and potentially fail to block or restrict a potentially nefarious user.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

mediawiki
mediawiki
≤ 1.36

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References