CVE-2021-42043
MEDIUMMediaWiki < 1.36.2 - Cross-Site Scripting via Special:MediaSearch intitle: Operator
Title source: llmDescription
An issue was discovered in Special:MediaSearch in the MediaSearch extension in MediaWiki through 1.36.2. The suggestion text (a parameter to mediasearch-did-you-mean) was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript via the intitle: search operator within the query.
References (2)
Core 2
Core References
Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://phabricator.wikimedia.org/T291600
Patch, Vendor Advisory x_refsource_misc
https://gerrit.wikimedia.org/r/q/If64eb5842237c92290d07ebc3fe14710d9de3fc2
Scores
CVSS v3
6.1
EPSS
0.0044
EPSS Percentile
63.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (1)
mediawiki/mediawiki
< 1.36.2
Published
Oct 06, 2021
Tracked Since
Feb 18, 2026