alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-56291 Joomla - Arbitrary File Upload"; flow:established,to_server; http.uri; content:"index.php"; nocase; fast_pattern; classtype:web-application-attack; reference:cve,CVE-2026-56291; reference:url,https://www.exploit.observer/?keyword=CVE-2026-56291&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=joomla&match=exact; sid:1010230; rev:1;)