Jens Nygård
Jan 10, 2012
  17735
(2 votes)

Security vulnerability - Elevation of privilege

A security vulnerability has been detected which allows elevation of privilege for a user that has access to Edit mode in EPiServer CMS 5 and CMS 6. In practice this means that someone with editorial privileges could take ownership of the “WebAdmins” account.

Websites based on EPiServer CMS 5 and 6 using Forms Authentication with a Membership provider that supports updating are affected by this security vulnerability. Websites using Windows Authentication or Forms Authentication with Windows Membership provider are not affected.

We recommend our partners to contact EPiServer Developer Support to obtain a hotfix for the CMS specific security concerns.

The above shares some characteristics with the vulnerability previously reported by Microsoft, but should not be mistaken as the same. For more information see Microsoft Security Bulletin MS11-100

Jan 10, 2012

Comments

Magnus Rahl
Magnus Rahl Jan 10, 2012 06:55 PM

I assume this includes CMS 6 R2?

Lars Bodahl
Lars Bodahl Jan 10, 2012 10:44 PM

All CMS 5 and 6 versions. You get a hotfix from support :)

erik.engstrand@precio.se
erik.engstrand@precio.se Jan 11, 2012 09:05 AM

Thanx

Please login to comment.
Latest blogs
Upgrade RSS Feed Integration to Optimizely CMS 13 – v3.0.0 Beta

I’ve upgraded my  RSS Feed Integration library for Optimizely CMS to support Optimizely CMS 13. Version 3.0.0 is currently released as a beta to...

David Drouin-Prince | Feb 21, 2026 |

Multi Site NuGet v2 for Optimizely CMS 13 – Breaking Changes & Migration

The beta version 2 of DavidHome.Optimizely.MultiSite is now available on NuGet: https://www.nuget.org/packages?q=DavidHome.Optimizely.MultiSite Thi...

David Drouin-Prince | Feb 21, 2026 |

Automate Your OCP Opal Tool Development with PowerShell

Creating an OCP (Optimizely Connect Platform) Opal Tool app from scratch can be time consuming and error prone. You need to set up the project...

Sanjay Kumar | Feb 21, 2026

Using HeadlessKit to build a head for an Optimizely SaaS CMS in .NET 10

Headless has a tendency to promise freedom and deliver alignment meetings. Two codebases. Two sets of models. Two teams trying very hard not to dri...

Allan Thraen | Feb 19, 2026 |