search menu icon-carat-right cmu-wordmark

CERT Coordination Center

ProjectForum XSS vulnerability

Vulnerability Note VU#901251

Original Release Date: 2011-09-30 | Last Revised: 2011-09-30


ProjectForum and possibly previous versions, are vulnerable to cross site scripting (XSS).


CourseForum's ProjectForum software fails to sanitize all input fields. As a result, cross site scripting (XSS) attacks can be conducted. By default, a non-credentialed user can create a new webpage on a ProjectForum wiki. Each ProjectForum wiki page contains a "more" object which allows a listing of objects associated with the ProjectForum wiki webpage. An attacker can inject javascript code that will be run each time the ProjectForum wiki webpage is accessed by renaming one of the ProjectForum wiki associated objects and inserting javascript code as the name.

For example, the following javascript code can be injected into the listing of objects variable:

<IMG "><SCRIPT>alert("Vulnerable")</SCRIPT>">


An attacker with access to the ProjectForum wiki can conduct a cross site scripting attack, which could be used to result in information leakage, privilege escalation, and/or denial of service.


We are currently unaware of a practical solution to this problem.

Restrict access

As a general good security practice, only allow connections from trusted hosts and networks. Note that restricting access does not prevent XSS or CSRF attacks since the attack comes as an HTTP request from a legitimate user's host. Restricting access would prevent an attacker from accessing a ProjectForum wiki using stolen credentials from a blocked network location.

Vendor Information


CourseForum Technologies Affected

Updated:  September 20, 2011



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

CVSS Metrics

Group Score Vector



Thanks to Paul Davis for reporting this vulnerability.

This document was written by Michael Orlando.

Other Information

CVE IDs: None
Severity Metric: 0.03
Date Public: 2011-09-30
Date First Published: 2011-09-30
Date Last Updated: 2011-09-30 11:58 UTC
Document Revision: 10

Sponsored by CISA.