MediaWiki Use of Hard-coded Credentials Vulnerability - CVE-2012-4381
MediaWiki before 1.18.5 and 1.19.x before 1.19.2 saves passwords in the local database (1) which could make it easier for context-dependent attackers to obtain cleartext passwords via a brute-force attack or (2) when an authentication plugin returns a false in the strict function could allow remote attackers to use old passwords for non-existing accounts in an external authentication system via unspecified vectors.