CVE-2021-30159: Undefined Security Weakness

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Users can bypass intended restrictions on deleting pages in certain "fast double move" situations. MovePage::isValidMoveTarget uses FOR UPDATE, but it's only called if Title::getArticleID returns non-zero...