{"id":"CVE-2026-16582","aliases":["EUVD-2026-82495","GHSA-29vh-pvp9-x94x"],"status":"published","title":"Booking for Appointments and Events Calendar - Amelia \u003c= 2.4.5 - Missing Authorization to Unauthenticated Payment Bypass","description":"The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 2.4.5. This is due to the plugin accepting a client-supplied package-redemption identifier as proof of payment without validating it. This makes it possible for unauthenticated attackers to create approved appointment bookings without completing payment","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00315,"percentile":0.2477,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-09-17T21:28:49Z","modified":"2026-09-18T15:17:06Z","products":[{"vendor":"ameliabooking","product":"booking for appointments and events calendar – amelia"},{"vendor":"melograno","product":"booking for appointments and events calendar – amelia"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/9e0c6f83-f4ca-4891-b2db-e2ac49d96ee5?source=cve"},{"url":"https://plugins.trac.wordpress.org/changeset/3640186"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16582"},{"url":"https://github.com/advisories/GHSA-29vh-pvp9-x94x"}],"sources":{"cve":[{"id":"CVE-2026-16582","title":"Booking for Appointments and Events Calendar - Amelia \u003c= 2.4.5 - Missing Authorization to Unauthenticated Payment Bypass","description":"The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 2.4.5. This is due to the plugin accepting a client-supplied package-redemption identifier as proof of payment without validating it. This makes it possible for unauthenticated attackers to create approved appointment bookings without completing payment","status":"published","published":"2026-09-17T21:28:49.022Z","modified":"2026-09-18T14:43:25.774Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:20:10.870108Z"}],"euvd":[{"id":"EUVD-2026-82495","description":"The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 2.4.5. This is due to the plugin accepting a client-supplied package-redemption identifier as proof of payment without validating it. This makes it possible for unauthenticated attackers to create approved appointment bookings without completing payment","status":"published","published":"2026-09-17T21:28:49Z","modified":"2026-09-18T14:43:25Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:28:08.412343Z"}],"ghsa":[{"id":"GHSA-29vh-pvp9-x94x","title":"The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to...","description":"The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 2.4.5. This is due to the plugin accepting a client-supplied package-redemption identifier as proof of payment without validating it. This makes it possible for unauthenticated attackers to create approved appointment bookings without completing payment","status":"published","published":"2026-09-18T00:31:06Z","modified":"2026-09-18T00:31:07Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:12:08.779152Z"}],"nvd":[{"id":"CVE-2026-16582","description":"The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 2.4.5. This is due to the plugin accepting a client-supplied package-redemption identifier as proof of payment without validating it. This makes it possible for unauthenticated attackers to create approved appointment bookings without completing payment","status":"published","published":"2026-09-17T22:16:58.997Z","modified":"2026-09-18T15:17:06.04Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:49.70655Z"}]}}