CVE-2023-45364 Information

Description

An issue was discovered in includes/page/Article.php in MediaWiki 1.36.x through 1.39.x before 1.39.5 and 1.40.x before 1.40.1. Deleted revision existence is leaked due to incorrect permissions being checked. This reveals that a given revision ID belonged to the given page title and its timestamp both of which are not supposed to be public information.

Reference

https://phabricator.wikimedia.org/T264765