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XSS vulnerability in BXR



Vulnerability ID: HTB22507
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_bxr_1.html
Product: BXR
Vendor: Hulihan Applications ( http://hulihanapplications.com/projects/bxr ) 
Vulnerable Version: 0.6.8 and Probably Prior Versions
Vendor Notification: 22 July 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Fixed by Vendor
Risk level: Medium 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) 

Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerability exists due to failure in the /file/do_the_upload script to properly sanitize user-supplied input in "tag_1" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data.

An attacker can use browser to exploit this vulnerability. In file upload form insert into "Tag 1" field tag named like mytagname"><script>alert(document.cookie)</script> and upload it.
Solution: Upgrade to the most recent version