alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-117565 Artalk - Unauthenticated SSRF via comment page_key"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/api/v2/comments"; nocase; fast_pattern; http.request_body; content:"\"page_key\""; nocase; pcre:"/\"page_key\"\s*\x3a\s*\"https?\x3a\/\//i"; classtype:web-application-attack; reference:cve,CVE-2026-117565; reference:url,https://www.exploit.observer/?keyword=CVE-2026-117565&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=artalk&match=exact; sid:1090000; rev:1;)