MediaWiki 1.3.13 is a security maintenance release.
Vulnerable releases and fix:
* 1.5 prerelease: fixed in 1.5alpha2
* 1.4 stable series: fixed in 1.4.5
* 1.3 legacy series: fixed in 1.3.13
* 1.2 series no longer supported; upgrade to 1.4.5 strongly recommended
The 1.3.x series is no longer maintained except for security fixes;
new users and those seeking general bug fixes should install 1.4.5. Existing 1.3.x installations not willing or able to upgrade to the current stable relase should update the installation to 1.3.13; only includes/Parser.php has changed from 1.3.12.
1.4.5 includes a number of bug fixes as well.
Tarballs are available for download: