ET WEB_SPECIFIC_APPS SiteloomCMS mailform_1 variable Cross Site Scripting Attempt

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
    msg:"ET WEB_SPECIFIC_APPS SiteloomCMS mailform_1 variable Cross Site Scripting Attempt";
    flow:established,to_server;
    http.uri;
    content:"/index.php?"; nocase;
    content:"pageid="; nocase; distance:0;
    content:"mailform_send="; nocase; distance:0;
    content:"confirm_value="; nocase; distance:0;
    content:"mailform_1="; nocase; distance:0; fast_pattern;
    pcre:"/^.+(script|onmouse[a-z]+|onkey[a-z]+|onload|onunload|ondragdrop|onblur|onfocus|onclick|ondblclick|onsubmit|onreset|onselect|onchange|style\x3D)/Ri";
    reference:url,packetstormsecurity.org/1008-exploits/siteloomcms-xss.txt;
    classtype:web-application-attack;
    sid:2011927; rev:5;
    metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2010_11_19, deployment Datacenter, signature_severity Major, tag XSS, tag Cross_Site_Scripting, updated_at 2020_11_07;
)