CVE-2023-45362 Information

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Description

An issue was discovered in DifferenceEngine.php in MediaWiki before 1.35.12 1.36.x through 1.39.x before 1.39.5 and 1.40.x before 1.40.1. diff-multi-sameuser (aka \X intermediate revisions by the same user not shown) ignores username suppression. This is an information leak.

Reference

https://phabricator.wikimedia.org/T341529