Description: Andrey Rusyaev has discovered a vulnerability in Mono, which potentially can be exploited by malicious people to conduct cross-site scripting and script insertion attacks.
The vulnerability is caused due to an input validation error in the sanitation of special HTML characters supplied as unicode characters in the "Request Validation" security mechanism. This can e.g. be exploited to execute arbitrary HTML and script code in a user's browser session in context of a vulnerable site via a script returning user input without sanitation.
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.
Ideas, suggestions, and other feedback are most welcome.
