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CVE-2021-31553

CVE-2021-31553

EPSS 1.4%
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.
Produtos afetados
n/a · n/a

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Referências
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666963https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666964https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667023https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667024https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667025https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667027https://phabricator.wikimedia.org/T275669