CVE-2021-31553
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | n/a | n/a | affected |
Weaknesses
- n/a
ADP Enrichment
CVE Program Container
Additional References
- https://phabricator.wikimedia.org/T275669
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667023
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667024
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667025
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667027
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666963
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666964
References
- https://phabricator.wikimedia.org/T275669
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667023
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667024
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667025
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667027
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666963
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666964
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