ET WEB_SPECIFIC_APPS WSO2 API Manager Blind XML External Entity Injection (CVE-2025-2905) M3

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS WSO2 API Manager Blind XML External Entity Injection (CVE-2025-2905) M3";
    flow:established,to_server;
    http.uri;
    content:"/services/WorkflowCallbackService"; fast_pattern; startswith;
    http.request_body;
    content:"ns:resumeEvent";
    content:"|3c 21 5b|CDATA"; distance:0;
    http.method;
    content:"POST";
    reference:url,crnkovic.dev/wso2-404-to-arbitrary-file-read/;
    reference:cve,2025-2905;
    classtype:web-application-attack;
    sid:2065718; rev:1;
    metadata:affected_product WSO2, attack_target Server, tls_state TLSDecrypt, created_at 2025_11_10, cve CVE_2025_2905, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_10, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)