{"id":"EM-20261112-KF7M","url":"https://cyber.eventmonitor.net/incident/EM-20261112-KF7M/masterstudy-vulnerability-cve-2026-13764/","type":"cve","title":"Masterstudy Vulnerability (CVE-2026-13764)","subtitle":"CVE-2026-13764","subject":"CVE-2026-13764","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-12T12:18:23.753Z","firstSignal":"2026-11-12T00:00:00.000Z","lastSignal":"2026-11-12T12:18:23.753Z","updated":"2026-11-12T18:33:18.063Z","revision":1,"life":[{"status":"Born","at":"2026-11-12T12:18:23.753Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-12T12:18:23.753Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-12T00:00:00.000Z","what":"First signal: C30 VulnCheck KEV"},{"at":"2026-11-12T12:18:23.753Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261112-KF7M created."}],"stages":[{"name":"Disclosed","at":"2026-11-12T12:18:23.753Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-12T12:18:23.753Z","detail":"CVSS 8.8"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":null,"detail":"None in sources yet"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-12T00:00:00.000Z","source":"C30","sourceName":"VulnCheck KEV","role":"Research & News","severity":3,"title":"CVE-2026-13764 known exploited (VulnCheck KEV): Missing Authorization","text":"The Masterstudy - Education WordPress Theme theme for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.8.151. This is due to missing authorization and nonce validation on the `masterstudy_ms_stm_set_discard_transient` AJAX action. This makes it possible for…","url":"https://vulncheck.com/browse/cve/CVE-2026-13764"},{"at":"2026-11-12T12:18:23.753Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-13764 (CVSS 8.8)","text":"The Masterstudy - Education WordPress Theme theme for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.8.151. This is due to missing authorization and nonce validation on the `masterstudy_ms_stm_set_discard_transient` AJAX action. This makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to Administrator by setting the `stm_developer_access_token` transient and using the developer access auto-login flow to obtain administrator session cookies.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13764"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-12T12:18:23.753","score":8.8,"severity":"HIGH","desc":"The Masterstudy - Education WordPress Theme theme for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.8.151. This is due to missing authorization and nonce validation on the `masterstudy_ms_stm_set_discard_transient` AJAX action. This makes it possible for…","product":"","seen":1794508398063},"kev":null,"epss":null,"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}