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CVE-2021-30154

CVE-2021-30154

EPSS 1.3%
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS.
Affected products
n/a · n/a

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References
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT/https://phabricator.wikimedia.org/T278014https://security.gentoo.org/glsa/202107-40https://www.debian.org/security/2021/dsa-4889