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MediaWiki 1.4.10 and 1.3.16 are security maintenance releases. A bug in edit submission handling could cause corruption of the previous revision in the database if an abnormal URL was used, such as those used by some spambots.

Affected releases: * 1.4.x <= 1.4.9; fixed in 1.4.10 * 1.3.x <= 1.3.15; fixed in 1.3.16

1.5 release candidates are not affected by this problem.

All publicly editable wikis are strongly recommended to upgrade immediately. 1.4 releases can be manually patched by changing this bit in EditPage.php:

~ function importFormData( &$request ) { ~ if( $request->wasPosted() ) {

to:

~ function importFormData( &$request ) { ~ if( $request->getVal( 'action' ) == 'submit' && ~ $request->wasPosted() ) {

1.3 releases can be manually patched by changing this bit in EditPage.php:

~ if( $this->tokenOk( $request ) ) { ~ $this->save = $request->wasPosted() && !$this->preview; ~ } else {

to:

~ if( $this->tokenOk( $request ) ) { ~ $this->save = $request->getVal( 'action' ) == 'submit' && ~ $request->wasPosted() && !$this->preview; ~ } else {

Release notes: http://sourceforge.net/project/shownotes.php?release_id=358163 http://sourceforge.net/project/shownotes.php?release_id=358162

Download: http://prdownloads.sourceforge.net/wikipedia/mediawiki-1.4.10.tar.gz?downloa... http://prdownloads.sourceforge.net/wikipedia/mediawiki-1.3.16.tar.gz?downloa...

MD5 checksum: mediawiki-1.4.10.tar.gz 2376f043109066d19830d05b6682c64b mediawiki-1.3.16.tar.gz 7dae5d937c6803d970e803ddece750dc

Before asking for help, try the FAQ: http://meta.wikimedia.org/wiki/MediaWiki_FAQ

Low-traffic release announcements mailing list: http://mail.wikipedia.org/mailman/listinfo/mediawiki-announce

Wiki admin help mailing list: http://mail.wikipedia.org/mailman/listinfo/mediawiki-l

Bug report system: http://bugzilla.wikimedia.org/

Play "stump the developers" live on IRC: #mediawiki on irc.freenode.net

- -- brion vibber (brion @ pobox.com / brion @ wikimedia.org)