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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2021-04-22T02:29:31
Updated: 2024-08-03T23:03:33.430Z
Reserved: 2021-04-22T00:00:00
Link: CVE-2021-31553
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2021-04-22T03:15:08.197
Modified: 2021-04-22T20:14:45.357
Link: CVE-2021-31553
Redhat
No data.