An issue was discovered in the Widgets extension through 1.4.0 for MediaWiki. Improper title sanitization allowed for the execution of any wiki page as a widget (as defined by this extension) via MediaWiki's {{#widget:}} parser function.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
Link | Tags |
---|---|
https://phabricator.wikimedia.org/T245850 | third party advisory exploit |
https://gerrit.wikimedia.org/r/q/I953e060bc6994ffdba9f380c98173f53f8ca1ea8 | third party advisory patch |