XSS Vulnerabilities in Claroline


Advisory by Netsparker (now Invicti)
Name: XSS Vulnerabilities in Claroline
Software: Claroline v1.11.9 and possibly below.
Vendor Homepage : http://www.claroline.net/
Vulnerability Type: Cross-site Scripting
Severity: Critical
Researcher: Omar Kurt
Advisory Reference: NS-14-011


Claroline is an open source platform for collaborative e-learning and working online.


Claroline is affected by XSS vulnerabilities in version 1.11.9.
Example PoC urls are as follows:

  • Cross-site Scripting

You can read the full article about Cross-site Scripting vulnerabilities from here:


Advisory Timeline

13/12/2013 – First Contact – No Response
06/03/2014 – Advisory Released


It has been discovered on testing of Invicti Web Application Security Scanner.

About Invicti

Invicti® 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. Invicti’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.