The Echo extension for MediWiki does not properly implement the hideuser functionality, which allows remote authenticated users to see hidden usernames in "non-revision based" notifications, as demonstrated by viewing a hidden username in a Thanks notification.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Link | Tags |
---|---|
http://www.securitytracker.com/id/1034028 | vdb entry |
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-October/000182.html | mailing list patch vendor advisory |
https://phabricator.wikimedia.org/T110553 | vendor advisory |