CVE-2021-31547

—

CVSS 3.1

4.3 medium

EPSS

<1%p57

Published

Apr 22, 2021 (Apr 22, 2021)

Modified

Jun 17, 2026

Description

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. Its AbuseFilterCheckMatch API reveals suppressed edits and usernames to unprivileged users through the iteration of crafted AbuseFilter rules.

Vendors: mediawiki
Products: mediawiki
Weakness: CWE-200
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.9%)

In the news0 stories

No ingested article mentions this CVE yet.