Wikimedia · Mediawiki · CVE-2019-12469
**Name of the Vulnerable Software and Affected Versions**
MediaWiki versions prior to 1.32.2
MediaWiki versions prior to 1.31.2
MediaWiki versions prior to 1.30.2
MediaWiki versions prior to 1.27.6
**Description**
The issue is related to insufficient access control in MediaWiki, allowing a remote attacker to gain unauthorized access to information. Specifically, suppressed usernames or log in Special:EditTags are exposed.
**Recommendations**
For MediaWiki versions prior to 1.32.2, update to version 1.32.2 or later.
For MediaWiki versions prior to 1.31.2, update to version 1.31.2 or later.
For MediaWiki versions prior to 1.30.2, update to version 1.30.2 or later.
For MediaWiki versions prior to 1.27.6, update to version 1.27.6 or later.