{"id":"CVE-2023-2027","state":"PUBLISHED","title":"ZM Ajax Login & Register <= 2.0.2 - Authentication Bypass","description":"The ZM Ajax Login & Register plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.0.2. This is due to insufficient verification on the user being supplied during a Facebook login through the plugin. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the username.","publishedAt":"2023-04-15T07:42:23.833Z","updatedAt":"2026-04-08T17:16:07.010Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"Wordfence"},"assigner":"Wordfence","products":["zanematthew ZM Ajax Login & Register"],"affected":[{"vendor":"zanematthew","product":"ZM Ajax Login & Register","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.0.2","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/b10d01ec-54ef-456b-9410-ed013343a962?source=cve","https://plugins.trac.wordpress.org/browser/zm-ajax-login-register/trunk/src/ALRSocial/ALRSocialFacebook.php#L58"],"weaknesses":["CWE-288"],"ingestedAt":"2026-10-29T20:05:52.290Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/2xxx/CVE-2023-2027.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-2027","state":"PUBLISHED","datePublished":"2023-04-15T07:42:23.833Z","dateUpdated":"2026-04-08T17:16:07.010Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2023-04-13T16:18:50.856Z"},"containers":{"cna":{"title":"ZM Ajax Login & Register <= 2.0.2 - Authentication Bypass","descriptions":[{"lang":"en","value":"The ZM Ajax Login & Register plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.0.2. This is due to insufficient verification on the user being supplied during a Facebook login through the plugin. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the username."}],"affected":[{"vendor":"zanematthew","product":"ZM Ajax Login & Register","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.0.2","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/b10d01ec-54ef-456b-9410-ed013343a962?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/zm-ajax-login-register/trunk/src/ALRSocial/ALRSocialFacebook.php#L58"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-288","lang":"en","description":"CWE-288 Authentication Bypass Using an Alternate Path or Channel","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-08T17:16:07.010Z"},"credits":[{"lang":"en","type":"finder","value":"István Márton"}],"timeline":[{"time":"2023-04-14T00:00:00.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/b10d01ec-54ef-456b-9410-ed013343a962?source=cve","tags":["x_transferred"]},{"url":"https://plugins.trac.wordpress.org/browser/zm-ajax-login-register/trunk/src/ALRSocial/ALRSocialFacebook.php#L58","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T06:12:19.934Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-01-13T16:16:51.567848Z","id":"CVE-2023-2027","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-01-13T16:51:29.874Z"}}]}}}