{"id":"CVE-2026-15930","state":"PUBLISHED","title":"Simple Membership < 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.","publishedAt":"2026-08-03T06:00:12.870Z","updatedAt":"2026-08-03T17:30:59.804Z","severity":{"score":9.4,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Simple Membership"],"affected":[{"vendor":"Unknown","product":"Simple Membership","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.7.8","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/e46948f1-0e06-4e76-8fc8-df661eb786a5/"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/15xxx/CVE-2026-15930.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-15930","state":"PUBLISHED","datePublished":"2026-08-03T06:00:12.870Z","dateUpdated":"2026-08-03T17:30:59.804Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-07-16T07:28:21.275Z"},"containers":{"cna":{"title":"Simple Membership < 4.7.8 - Unauthenticated Administrator Account Takeover via Registration Username Collision","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Unknown","product":"Simple Membership","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.7.8","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/e46948f1-0e06-4e76-8fc8-df661eb786a5/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-08-03T06:00:12.870Z"},"credits":[{"lang":"en","value":"Brandon Steed","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.4,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-03T17:16:42.878273Z","id":"CVE-2026-15930","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","type":"CWE","lang":"en","description":"CWE-862 Missing Authorization"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-03T17:30:59.804Z"}}]}}}