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MediaWiki Unquoted Search Path or Element Vulnerability - CVE-2021-31553 - Vulnerability Database
MediaWiki

MediaWiki Unquoted Search Path or Element Vulnerability - CVE-2021-31553

Medium
Reference: CVE-2021-31553
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2021-31553
Title: MediaWiki Unquoted Search Path or Element Vulnerability
Overview:

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.