{"id":"CVE-2026-86406","aliases":["EUVD-2026-76954","GHSA-23fc-j83w-rxq7"],"status":"published","title":"User Registration \u0026 Membership \u003c 5.2.8 - Subscriber+ Privilege Escalation via Membership Purchase","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role attached to a paid plan without paying for it. Where the site owner has mapped a plan to a privileged role, this leads to privilege escalation up to administrator.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00323,"percentile":0.25522,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2026-09-13T06:00:08Z","modified":"2026-09-14T21:10:17Z","products":[{"vendor":"unknown","product":"user registration \u0026 membership"}],"references":[{"url":"https://wpscan.com/vulnerability/0fb4ec40-3f92-4c7e-8877-8898b355d78d/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86406"},{"url":"https://wpscan.com/vulnerability/0fb4ec40-3f92-4c7e-8877-8898b355d78d"},{"url":"https://github.com/advisories/GHSA-23fc-j83w-rxq7"}],"sources":{"cve":[{"id":"CVE-2026-86406","title":"User Registration \u0026 Membership \u003c 5.2.8 - Subscriber+ Privilege Escalation via Membership Purchase","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role attached to a paid plan without paying for it. Where the site owner has mapped a plan to a privileged role, this leads to privilege escalation up to administrator.","status":"published","published":"2026-09-13T06:00:08.312Z","modified":"2026-09-13T10:45:23.16Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T13:49:31.546614Z"}],"euvd":[{"id":"EUVD-2026-76954","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role attached to a paid plan without paying for it. Where the site owner has mapped a plan to a privileged role, this leads to privilege escalation up to administrator.","status":"published","published":"2026-09-13T06:00:08Z","modified":"2026-09-13T10:45:23Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:28:21.556158Z"}],"ghsa":[{"id":"GHSA-23fc-j83w-rxq7","title":"The User Registration \u0026 Membership  WordPress plugin before 5.2.8 does not check the capability...","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role attached to a paid plan without paying for it. Where the site owner has mapped a plan to a privileged role, this leads to privilege escalation up to administrator.","status":"published","published":"2026-09-13T06:33:11Z","modified":"2026-09-13T12:31:09Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T15:11:47.193563Z"}],"nvd":[{"id":"CVE-2026-86406","description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role attached to a paid plan without paying for it. Where the site owner has mapped a plan to a privileged role, this leads to privilege escalation up to administrator.","status":"published","published":"2026-09-13T06:16:25.157Z","modified":"2026-09-14T21:10:17.423Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:12:46.980627Z"}]}}