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CVE-2021-36126

CRITICAL

9.8

Description

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

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published7/2/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

mediawiki:mediawiki

References

https://gerrit.wikimedia.org/r/q/I9e9f44b7663e810de70fb9ac7f6760f83dd4895b(cve@mitre.org)

https://phabricator.wikimedia.org/T284364(cve@mitre.org)

https://gerrit.wikimedia.org/r/q/I9e9f44b7663e810de70fb9ac7f6760f83dd4895b(af854a3a-2127-422b-91ae-364da2661108)

https://phabricator.wikimedia.org/T284364(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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