The language converter in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows attackers to replace text inside tags via a rule definition followed by "a lot of junk."
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Link | Tags |
---|---|
http://www.securitytracker.com/id/1039812 | third party advisory vdb entry |
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html | patch vendor advisory mailing list |
https://www.debian.org/security/2017/dsa-4036 | third party advisory vendor advisory |