alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
msg:"ET WEB_SPECIFIC_APPS CSSTidy css_optimiser.php url Parameter Cross Site Scripting Attempt";
flow:established,to_server;
http.uri;
content:"/plugins/csstidy/css_optimiser.php?"; nocase;
content:"url="; nocase;
pcre:"/url\x3d.+(script|onmouse[a-z]+|onkey[a-z]+|onload|onunload|ondragdrop|onblur|onfocus|onclick|ondblclick|onsubmit|onreset|onselect|onchange|style\x3D)/i";
reference:url,secunia.com/advisories/40515/;
reference:url,cross-site-scripting.blogspot.com/2010/07/impresscms-121-final-reflected-cross.html;
classtype:web-application-attack;
sid:2011383; rev:5;
metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2010_09_28, deployment Datacenter, signature_severity Major, tag XSS, tag Cross_Site_Scripting, updated_at 2020_09_02;
)