ZH2003-24SA (security advisory): ChitChat.NET XSS Vulnerability Published: 13 august 2003 Released: 13 august 2003 Name: ChitChat.NET Affected Systems: 2.0 Issue: Remote attackers can inject XSS script Author: G00db0y@zone-h.org Vendor: http://clickcess.com/ Description *********** Zone-h Security Team has discovered a flaw in ChitChat.NET v2.0 (and older versions?). "ChitChat.NET is an ASP.NET based discussion forum designed specifically for SQL Server." Details ******* It's possibile to inject XSS script in the Name box and in the Topic Title box. For example try this: Name: <script>alert(Zone-h1)</script> Email address: test@test.com Topic title: <script>alert(Zone-h)</script> Message: www.Zone-h.org Solution: ********* The vendor has been contacted and a patch was produced. Suggestions: ************ Filter the posting procedure. G00db0y - www.zone-h.org admin Original advisory here: http://www.zone-h.org/en/advisories/read/id=2882/