alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-12195 myVesta Authenticated OS Command Injection via v_ftp_user"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/edit/web/"; nocase; fast_pattern; http.request_body; content:"v_ftp_user"; nocase; pcre:"/v_ftp_user[^&]*(?:\x3b|\x7c|%3b|%7c|\x60|%60|\x24\x28|%24%28|&&|\x0a)/i"; classtype:web-application-attack; reference:cve,CVE-2026-12195; reference:url,https://www.exploit.observer/?keyword=CVE-2026-12195&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=myvesta&match=exact; sid:1096404; rev:1;)