{"schemaVersion":3,"id":"CVE-2026-92619","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"The Booking Calendar plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 11.8.2 via the `wpbc_ajax_option_save` AJAX action. The vulnerability exists because the `handle_ajax_save()` function applies per-option safeguards only to names explicitly registered via `register_option_policy()`, causing `get_option_policy()` to return an empty policy — bypassing all can_save, force_mode, and allowed_keys checks — for any unregistered option name, including core WordPress options, while an attacker-controlled `data_name` parameter passes through `sanitize_key()` and is written directly to `update_option()` without restriction. This makes it possible for authenticated attackers with Editor-level access and above to escalate their privileges to Administrator by writing core WordPress options such as `default_role=administrator` and `users_can_register=1`, then self-registering a new Administrator account. The nonce check does not meaningfully restrict this attack, as both the nonce value and nonce action are attacker-supplied POST parameters, and a valid nonce is trivially obtainable via `admin-ajax.php?action=rest-nonce`.","dates":{"published":"2026-09-18T06:38:54.974Z","modified":"2026-09-18T18:32:21.018Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.2,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"wordfence","score":7.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00656,"percentile":0.50728,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.285,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00371},"history":[{"date":"2026-09-18T00:00:00.000Z","score":0.00371,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00371,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00371,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00371,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00371,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00371,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00656,"percentile":0.50728}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00371,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00371,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00371,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00656,"percentile":null},{"date":"2026-10-11T00: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