Vanguard 2.1 Cross-Site Scripting



Application Details

Vanguard can be used to create a virtual downloads online marketplace. It can be utilised with Chrome, Firefox, Edge and Opera.


Vulnerability

Vanguard is vulnerable to cross-site scripting, caused by improper validation of user-supplied input.


Identification

A remote attacker could exploit this vulnerability using the 'phps_query' parameter in a specially crafted URL to execute script in a victim's Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.

POST /search
PAYLOAD - phps_query="> <iframe src=evil.source onload=alert(document.cookie)>&phps_search=;)


Detection

By turning this into a traffic file and matching rule, we are able to detect attempts to influence the vulnerable parameter with cross-site scripting attempts.


Coverage

Idappcom has created signature 8021994 along with a traffic file.


References

Vanguard 2.1 - 'Search' Cross-Site Scripting - Exploit Database

Vanguard 2.1 Cross-Site Scripting - Packet Storm Security


Traffic IQ

If you are concerned that your business may be at risk of this vulnerability or others why not try out our Traffic IQ software which can share your defences and report any issues. Learn more here: https://www.idappcom.co.uk/traffic-iq-professional