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.
{ "binaries": [ { "binary_name": "mediawiki", "binary_version": "1:1.31.7-1" }, { "binary_name": "mediawiki-classes", "binary_version": "1:1.31.7-1" } ] }
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-30154.json"