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Family: CGI abuses : XSS --> Category: attack

Advanced Guestbook User-Agent HTML Injection Vulnerability Vulnerability Scan

Vulnerability Scan Summary
Checks for User-Agent HTML injection vulnerability in Advanced Guestbook

Detailed Explanation for this Vulnerability Test

Synopsis :

The remote web server contains a PHP script which is vulnerable to a cross site
scripting issue.

Description :

The remote host is running Advanced Guestbook, a free guestbook
written in PHP.

The installed version of Advanced Guestbook fails to properly sanitize
the 'HTTP_USER_AGENT' environment variable before using it in
dynamically generated content. A possible hacker can exploit this flaw to
launch cross-site scripting attacks against the affected application.

Solution :

Upgrade to Advanced Guestbook version 2.3.3 or later.

See also :

Threat Level:

Low / CVSS Base Score : 3

Click HERE for more information and discussions on this network vulnerability scan.


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