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.
References
Configurations
History
21 Nov 2024, 06:05
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666963 - Issue Tracking, Third Party Advisory | |
| References | () https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666964 - Issue Tracking, Third Party Advisory | |
| References | () https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667023 - Issue Tracking, Third Party Advisory | |
| References | () https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667024 - Issue Tracking, Third Party Advisory | |
| References | () https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667025 - Issue Tracking, Third Party Advisory | |
| References | () https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667027 - Issue Tracking, Third Party Advisory | |
| References | () https://phabricator.wikimedia.org/T275669 - Third Party Advisory |
Information
Published : 2021-04-22 03:15
Updated : 2024-11-21 06:05
NVD link : CVE-2021-31553
Mitre link : CVE-2021-31553
CVE.ORG link : CVE-2021-31553
JSON object : View
Products Affected
mediawiki
- mediawiki
CWE
CWE-428
Unquoted Search Path or Element