Two vulnerabilities have been discovered in X7 Chat, which can be exploited by malicious people to conduct cross-site scripting and cross-site request forgery attacks.

1) Input passed via the "room" parameter to sources/frame.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

2) The application allows users to perform certain actions via HTTP requests without performing proper validity checks to verify the requests. This can be exploited to e.g. add an user to the administrator group when a logged-in administrative user visits a specially crafted web page.

The vulnerabilities are confirmed in version 2.0.5.1. Other versions may also be affected.

Solution
Use another product.

Provided and/or discovered by
1) ShAy6oOoN
2) DennSpec

Changelog
Further details available to Secunia VIM customers

Original Advisory
ShAy6oOoN:
http://packetstormsecurity.org/files/60869/x7-xss.txt.html

DennSpec:
http://www.exploit-db.com/exploits/18850/

Deep Links
Links available to Secunia VIM customers