ZeroHour

CVE-2021-31553

CVSS 3.1
6.5 medium
EPSS
1%p71
Published
()
Modified
Description

An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2. MediaWiki usernames with trailing whitespace could be stored in the cu_log database table such that denial of service occurred for certain CheckUser extension pages and functionality. For example, the attacker could turn off Special:CheckUserLog and thus interfere with usage tracking.

Vendors
mediawiki
Products
mediawiki
Weakness
CWE-428
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

In the news

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