The vulnerability in the files IntroMessageBuilder.Php, PermissionManager.Php, and RestrictionStore.Php of the MediaWiki software, which are used to implement a hypertext environment, allows a malicious user to gain unauthorized access to protected information.

The vulnerability of the IntroMessageBuilder.Php, PermissionManager.Php, and RestrictionStore.Php files of the MediaWiki hypertext environment implementation is related to improper storage of permissions. Exploiting this vulnerability could allow an attacker to gain unauthorized access to protect...