Description
WordPress before 3.0.1, when a Multisite installation is used, permanently retains the "site administrators can add users" option once changed, which might allow remote authenticated administrators to bypass intended access restrictions in opportunistic circumstances via an add action after a temporary change.
Remediation
References
Related Vulnerabilities
WordPress Plugin Adicon Server SQL Injection (1.2)
WordPress Plugin Drag and Drop Multiple File Upload-Contact Form 7 Cross-Site Scripting (1.3.6.2)
WordPress Plugin Login with Cognito Cross-Site Scripting (1.4.3)
MediaWiki Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2016-6335)