CVE-2012-1031: Unspecified vulnerability in EPiServer CMS 5 and 6 through 6R2, in certain configurations using Forms Authe...

Security readout for executives and security teams

CVE-2012-1031 is a privilege escalation issue in EPiServer CMS 5 and 6 through 6R2. In certain Forms Authentication configurations, a user who already has Edit Mode privileges may gain WebAdmins access. This matters because content editors could become administrative users if the vulnerable configuration is present. Exposure is most likely in legacy EPiServer CMS 5 or 6 deployments through 6R2 that use Forms Authentication and grant Edit Mode access to non-admin users. Prioritize if any legacy EPiServer CMS 5/6 system remains business-facing or internet-accessible. The issue is old, but administrative privilege escalation in a CMS can affect website integrity, publishing control, and operational trust. Mitigation focus: Identify any EPiServer CMS 5 or 6 through 6R2 deployments.; Check whether Forms Authentication is enabled on those deployments.; Review EPiServer vendor advisory and hotfix guidance for applicable remediation..

Prepared

Jun 27, 2026, 17:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.