alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-55562 Cronicle - Stored Cross-Site Scripting"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/api/user/update"; nocase; fast_pattern; http.request_body; content:"full_name"; nocase; pcre:"/\x22full_name\x22\s*:\s*\x22[^\x22]*<[a-z]+[^>]*(?:onerror|onload|onmouseover|src\s*=|script)/i"; classtype:web-application-attack; reference:cve,CVE-2026-55562; reference:url,https://www.exploit.observer/?keyword=CVE-2026-55562&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=cronicle&match=exact; sid:1084203; rev:1;)