CVE-2021-31546

MEDIUM

MediaWiki < 1.35.2 - Sensitive Information Disclosure in AbuseFilter Log

Title source: llm

Description

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. It incorrectly logged sensitive suppression deletions, which should not have been visible to users with access to view AbuseFilter log data.

References (2)

Core 2

Core References

Third Party Advisory x_refsource_misc

https://phabricator.wikimedia.org/T71617

Issue Tracking, Third Party Advisory x_refsource_misc

https://gerrit.wikimedia.org/r/q/I38a0a24fa32ca7a052b6940864a32b3856e84553

Scores

CVSS v3 4.3

EPSS 0.0072

EPSS Percentile 49.0%

Attack Vector NETWORK

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

Details

CWE

CWE-532

Status published

Products (1)

mediawiki/mediawiki < 1.35.2

Published Apr 22, 2021

Tracked Since Feb 18, 2026