{"id":"CVE-2026-86406","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-86406","summary":"The User Registration & 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…","details":"The User Registration & 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.","published":"2026-09-13T06:16:25.157","modified":"2026-09-13T11:16:58.793","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://wpscan.com/vulnerability/0fb4ec40-3f92-4c7e-8877-8898b355d78d/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-13T11:16:58.793"}}