Security

How to report a security problem
If you have found or believe you have found a security bug in MediaWiki or on one of Wikimedia's web sites, please directly e-mail security&#64;wikimedia.org with details.

We would be most happy to have a day or two to fix the problem and prepare a bug fix for third-party users before public disclosure, if possible.

(Note that any security problems found in the wiki-to-HTML parser will be included in the parser regression test suite in the next release.)

By e-mail
You may subscribe to the low-traffic mediawiki-announce mailing list to receive notifications of new MediaWiki releases by e-mail.

This will include all security fix releases as well as other new versions. Anyone running a MediaWiki installation is strongly recommended to subscribe.

Further information
For some background on tightening up security and potential problems, see meta:Documentation:Security (possibly not 100% up to date, but a good primer).