Related Vulnerabilities: CVE-2021-30458  

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Parsoid comment fostering allowed for inserting mostly arbitrary <meta> tags.

Severity Medium

Remote Yes

Type Cross-site scripting

Description

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Parsoid comment fostering allowed for inserting mostly arbitrary <meta> tags.

AVG-1775 mediawiki 1.35.1-2 Medium Vulnerable

https://phabricator.wikimedia.org/T279451