ET EXPLOIT vBulletin 5.6.2 widget_tabbedContainer_tab_panel Remote Code Execution (Inbound)

alert http $EXTERNAL_NET any -> any any (
    msg:"ET EXPLOIT vBulletin 5.6.2 widget_tabbedContainer_tab_panel Remote Code Execution (Inbound)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/ajax/render/widget_tabbedcontainer_tab_panel"; fast_pattern;
    http.request_body;
    content:"echo%20shell_exec(";
    reference:url,www.exploit-db.com/exploits/48743;
    classtype:attempted-admin;
    sid:2030833; rev:2;
    metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2020_09_04, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_04, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)