Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS Extension allows Code Injection.This issue affects Mediawiki - CSS Extension: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.
The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.
Link | Tags |
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https://phabricator.wikimedia.org/T368628 | vendor advisory issue tracking |
https://phabricator.wikimedia.org/T368594 | vendor advisory issue tracking exploit |
https://gerrit.wikimedia.org/r/q/I6f38f4a8fc1dcd690ab27b8f18ce6ca903bacc53 | patch |