alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-81199 MasterStudy LMS WordPress Plugin WordPress - Information Disclosure"; flow:established,to_client; file.data; content:"rest_nonce"; nocase; fast_pattern; classtype:web-application-attack; reference:cve,CVE-2026-81199; reference:url,https://www.exploit.observer/?keyword=CVE-2026-81199&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=wordpress&match=exact; sid:1011638; rev:1;)