CVE-2021-31554

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CVSS 3.1

5.4 medium

EPSS

<1%p41

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. It improperly handled account blocks for certain automatically created MediaWiki user accounts, thus allowing nefarious users to remain unblocked.

Vendors: mediawiki
Products: mediawiki
Weakness: CWE-863
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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