{"id":"CVE-2026-15930","aliases":["EUVD-2026-52175","GHSA-7g75-5pmj-3v8p"],"status":"published","title":"Simple Membership \u003c 4.7.8 - Unauthenticated Administrator Account Takeover via Registration Username Collision","description":"The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the primary administrator's account data (including the email address) and take over that account through the password reset flow.","severity":{"version":"3.1","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00418,"percentile":0.36431,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-08-03T06:00:12Z","modified":"2026-08-26T16:31:36Z","products":[{"vendor":"unknown","product":"simple membership"},{"vendor":"wpinsider-1","product":"simple membership"}],"references":[{"url":"https://wpscan.com/vulnerability/e46948f1-0e06-4e76-8fc8-df661eb786a5/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15930"},{"url":"https://wpscan.com/vulnerability/e46948f1-0e06-4e76-8fc8-df661eb786a5"},{"url":"https://github.com/advisories/GHSA-7g75-5pmj-3v8p"}],"sources":{"cve":[{"id":"CVE-2026-15930","title":"Simple Membership \u003c 4.7.8 - Unauthenticated Administrator Account Takeover via Registration Username Collision","description":"The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the primary administrator's account data (including the email address) and take over that account through the password reset flow.","status":"published","published":"2026-08-03T06:00:12.87Z","modified":"2026-08-03T17:30:59.804Z","cvss":[{"version":"3.1","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T13:47:51.033687Z"}],"euvd":[{"id":"EUVD-2026-52175","description":"The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the primary administrator's account data (including the email address) and take over that account through the password reset flow.","status":"published","published":"2026-08-03T06:00:12Z","modified":"2026-08-03T17:30:59Z","cvss":[{"version":"3.1","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T18:02:24.01774Z"}],"ghsa":[{"id":"GHSA-7g75-5pmj-3v8p","title":"The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed...","description":"The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the primary administrator's account data (including the email address) and take over that account through the password reset flow.","status":"published","published":"2026-08-03T09:32:36Z","modified":"2026-08-03T18:31:50Z","cvss":[{"version":"3.1","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"critical"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:10:02.88062Z"}],"nvd":[{"id":"CVE-2026-15930","description":"The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the primary administrator's account data (including the email address) and take over that account through the password reset flow.","status":"published","published":"2026-08-03T07:16:40.31Z","modified":"2026-08-26T16:31:36.75Z","cvss":[{"version":"3.1","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:34.290716Z"}]}}