MediaWiki < 1.36.0 Invalid MediaWiki Abusefilter-blocker Breaks Filters

critical Web App Scanning Plugin ID 113994



MediaWiki < 1.36.0 Invalid MediaWiki Abusefilter-blocker Breaks Filters


According to its self-reported version number, the instance of MediaWiki hosted on the remote web server is prior to 1.36. It is, therefore, affected by a flaw when the blocker message is invalid in the content language, but also English is invalid on the wiki, which may permit remote attackers to bypass restrictions against abusive users.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.


Upgrade to MediaWiki version 1.36.0 or later.

See Also

Plugin Details

Severity: Critical

ID: 113994

Type: remote

Published: 8/7/2023

Updated: 8/9/2023

Scan Template: api, basic, full, pci, scan

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-36126


Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS Score Source: CVE-2021-36126

Vulnerability Information

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/7/2021

Vulnerability Publication Date: 7/7/2021

Reference Information

CVE: CVE-2021-36126