I. VULNERABILITY ------------------------- Reflected XSS Attacks vulnerability in Symantec Messaging Gateway Version 10.5.1 II. BACKGROUND ------------------------- Symantec Corporation is an American computer security, backup and availability solutions software corporation headquartered in Mountain View, California, United States. It is a Fortune 500 company and a member of the S&P 500 stock market index III. DESCRIPTION ------------------------- Has been detected a Reflected XSS vulnerability in Messaging Gateway Version. The code injection is done through the parameter "displayTab" in the page “/brightmail/setting/compliance/DlpConnectFlow$view.flo?displayTab=” IV. PROOF OF CONCEPT ------------------------- The application does not validate the parameter “operand[]” correctly. https://10.200.210.143/brightmail/setting/compliance/DlpConnectFlow$view.flo?displayTab=aaaaa')