CVE-2021-31549

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CVSS 3.1

4.3 medium

EPSS

<1%p55

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. The Special:AbuseFilter/examine form allowed for the disclosure of suppressed MediaWiki usernames to unprivileged users.

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 (0.8%)

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