Description
An issue was discovered in the AbuseFilter extension through 1.34 for MediaWiki. Once a specific abuse filter has (accidentally or otherwise) been made public, its previous versions can be exposed, thus potentially disclosing private or sensitive information within the filter's definition.
References (3)
Core 3
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://phabricator.wikimedia.org/T237887
Patch, Third Party Advisory x_refsource_misc
https://gerrit.wikimedia.org/r/q/Ic12790bd33982473f77551bde9599ed083a3e1f1
Product, Vendor Advisory x_refsource_misc
https://www.mediawiki.org/wiki/Extension:AbuseFilter
Scores
CVSS v3
5.3
EPSS
0.0042
EPSS Percentile
62.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-200
Status
published
Products (1)
mediawiki/abusefilter
< 1.34
Published
Nov 15, 2019
Tracked Since
Feb 18, 2026