Some vulnerabilities have been reported in Arcadwy Arcade Script, which can be exploited by malicious people to conduct SQL injection and script insertion attacks.

1) Input passed via the "user" cookie is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

Successful exploitation of the vulnerability enables bypassing the authentication mechanism.

2) Input passed to the "user_name" parameter in register.php (when "action" is set to "1") is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in the context of an affected site when the malicious user name is displayed.

Solution
Edit the source code to ensure that input is properly sanitised.

Provided and/or discovered by
1) ZoRLu
2) Anarchy Angel

Changelog
Further details available to Secunia VIM customers

Original Advisory
1) http://milw0rm.com/exploits/8304
2) http://milw0rm.com/exploits/8296

Deep Links
Links available to Secunia VIM customers