CVE-2021-36126

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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://gerrit.wikimedia.org/r/q/I9e9f44b7663e810de70fb9ac7f6760f83dd4895b	Patch Vendor Advisory
https://phabricator.wikimedia.org/T284364	Exploit Issue Tracking Patch Vendor Advisory
https://gerrit.wikimedia.org/r/q/I9e9f44b7663e810de70fb9ac7f6760f83dd4895b	Patch Vendor Advisory
https://phabricator.wikimedia.org/T284364	Exploit Issue Tracking Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:13

Type	Values Removed	Values Added
References	~~() https://gerrit.wikimedia.org/r/q/I9e9f44b7663e810de70fb9ac7f6760f83dd4895b - Patch, Vendor Advisory~~	() https://gerrit.wikimedia.org/r/q/I9e9f44b7663e810de70fb9ac7f6760f83dd4895b - Patch, Vendor Advisory
References	~~() https://phabricator.wikimedia.org/T284364 - Exploit, Issue Tracking, Patch, Vendor Advisory~~	() https://phabricator.wikimedia.org/T284364 - Exploit, Issue Tracking, Patch, Vendor Advisory

Information

Published : 2021-07-02 13:15

Updated : 2024-11-21 06:13

NVD link : CVE-2021-36126

Mitre link : CVE-2021-36126

CVE.ORG link : CVE-2021-36126

JSON object : View

Products Affected

mediawiki

mediawiki

CWE

NVD-CWE-Other

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