Information -------------------- Name :  Open Redirection Vulnerability in Orchard Software :  Orchard 1.3.9 and below. Vendor Homepage :  http://orchardproject.net Vulnerability Type :  Open Redirection Severity :  Medium Researcher :  Mesut Timur Advisory Reference :  NS-12-002 Description -------------------- Orchard is a free, open source, community-focused project aimed at delivering applications and reusable components on the ASP.NET platform. Details -------------------- Orchard is affected by a Open Redirection vulnerability in version 1.3.9. Example PoC url is as follows : http://www.example.com/orchard/Users/Account/LogOff?ReturnUrl=%2f%2fwww.netsparker.com%3f You can read the full article about Open Redirection vulnerability from here : http://www.mavitunasecurity.com/open-redirection/ Solution -------------------- Upgrade to the latest Orchard version (1.3.10). Credits -------------------- It has been discovered on testing of Netsparker, Web Application Security Scanner - http://www.mavitunasecurity.com/netsparker/. References -------------------- Vendor Url : http://orchard.codeplex.com/discussions/283667 MSL Advisory Link : http://www.mavitunasecurity.com/open-redirection-vulnerability-in-orchard/ Netsparker Advisories : http://www.mavitunasecurity.com/netsparker-advisories/ About Netsparker -------------------- NetsparkerŽ can find and report security issues such as SQL Injection and Cross-site Scripting (XSS) in all web applications regardless of the platform and the technology they are built on. Netsparker's unique detection and exploitation techniques allows it to be dead accurate in reporting hence it's the first and the only False Positive Free web application security scanner. -- Netsparker Advisories, Homepage, http://www.mavitunasecurity.com/netsparker-advisories/