ET WEB_SPECIFIC_APPS Dolibarr ERP/CRM societe_extrafields.php dol_eval Allow List Bypass via computed_value Parameter (CVE-2026-22666)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Dolibarr ERP/CRM societe_extrafields.php dol_eval Allow List Bypass via computed_value Parameter (CVE-2026-22666)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:38;
    content:"/societe/admin/societe_extrafields.php"; fast_pattern;
    http.request_body;
    content:"token|3d|";
    content:"action|3d|";
    content:"attrname|3d|";
    content:"pos|3d|";
    content:"computed_value|3d|";
    pcre:"/^.*(?:(?:\x28|%28)(?:\x27|%27)exec(?:\x27|%27)(?:\x29|%29)|new(?:\x20|\x2520)SplFileObject(?:\x28|%28)(?:\x27|%27)|fetchNoCompute(?:\x28|%28))/R";
    content:"list|3d|";
    content:"button|3d|";
    reference:url,jivasecurity.com/writeups/dolibarr-remote-code-execution-cve-2026-22666;
    reference:cve,2026-22666;
    classtype:attempted-admin;
    sid:2068801; rev:1;
    metadata:affected_product Dolibarr, attack_target Web_Server, tls_state plaintext, created_at 2026_04_16, cve CVE_2026_22666, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2026_04_16, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)