{"id":"CVE-2025-4855","aliases":["EUVD-2025-20754","GHSA-vv4w-9vmx-jmwp"],"status":"published","title":"Support Board \u003c= 3.8.0 - Unauthenticated Authorization Bypass due to Use of Default Secret Key","description":"The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00385,"percentile":0.32837,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-639"],"published":"2025-07-08T23:22:49Z","modified":"2026-06-17T09:34:09Z","products":[{"vendor":"schiocco","product":"support board"},{"vendor":"schiocco","product":"support_board"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/afd48bc8-d490-4a3e-97fc-70cf008cbf66?source=cve","tags":["Third Party Advisory"]},{"url":"https://codecanyon.net/item/support-board-help-desk-and-chat/20359943","tags":["Product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4855"},{"url":"https://github.com/advisories/GHSA-vv4w-9vmx-jmwp"}],"sources":{"cve":[{"id":"CVE-2025-4855","title":"Support Board \u003c= 3.8.0 - Unauthenticated Authorization Bypass due to Use of Default Secret Key","description":"The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated.","status":"published","published":"2025-07-08T23:22:49.55Z","modified":"2026-04-08T17:15:40.803Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:32:48.512547Z"}],"euvd":[{"id":"EUVD-2025-20754","description":"The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated.","status":"published","published":"2025-07-08T23:22:49Z","modified":"2026-04-08T17:15:40Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:24:45.130194Z"}],"ghsa":[{"id":"GHSA-vv4w-9vmx-jmwp","title":"The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion...","description":"The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated.","status":"published","published":"2025-07-09T00:30:34Z","modified":"2025-07-09T00:30:45Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T15:02:58.210008Z"}],"nvd":[{"id":"CVE-2025-4855","description":"The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated.","status":"published","published":"2025-07-09T00:15:47.243Z","modified":"2026-06-17T09:34:09.807Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:11:17.727956Z"}]}}