alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET WEB_SPECIFIC_APPS @Mail XSS Attempt -- ReadMsg.php"; flow:established,to_server; content:"/ReadMsg.php?"; http_uri; nocase; content:"| 3C |"; http_uri; content:"SCRIPT"; http_uri; nocase; content:"| 3E |"; http_uri; reference:cve,CVE-2007-2825; reference:url,xforce.iss.net/xforce/xfdb/34376; classtype:web-application-attack; sid:2004557; rev:5; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2019_08_22;)