CVE-2023-6520

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "WP 2FA \u2013 Two-factor authentication for WordPress", "vendor": "melapress", "versions": [{"lessThanOrEqual": "2.5.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:melapress:wp_2fa:*:*:*:*:*:wordpress:*:*", "matchCriteriaId": "BF518EBE-219C-4791-97F9-EA95A586C4D0", "versionEndExcluding": "2.6.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The WP 2FA \u2013 Two-factor authentication for WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.5.0. This is due to missing or incorrect nonce validation on the send_backup_codes_email function. This makes it possible for unauthenticated attackers to send emails with arbitrary content to registered users via a forged request granted they can trick a site administrator or other registered user into performing an action such as clicking on a link. While a nonce check is present, it is only executed if a nonce is set. By omitting a nonce from the request, the check can be bypassed."}, {"lang": "es", "value": "El complemento WP 2FA \u2013 Two-factor authentication for WordPress para WordPress es vulnerable a Cross-Site Request Forgery en todas las versiones hasta la 2.5.0 incluida. Esto se debe a una validaci\u00f3n nonce faltante o incorrecta en la funci\u00f3n send_backup_codes_email. Esto hace posible que atacantes no autenticados env\u00eden correos electr\u00f3nicos con contenido arbitrario a usuarios registrados a trav\u00e9s de una solicitud falsificada, siempre que puedan enga\u00f1ar a un administrador del sitio u otro usuario registrado para que realice una acci\u00f3n como hacer clic en un enlace. Mientras est\u00e9 presente una verificaci\u00f3n de nonce, solo se ejecuta si se establece un nonce. Al omitir un nonce de la solicitud, se puede omitir la verificaci\u00f3n."}], "id": "CVE-2023-6520", "lastModified": "2026-06-17T06:50:54.500", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "security@wordfence.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-6520", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-06-09T18:39:47.977951Z", "version": "2.0.3"}}]}, "published": "2024-01-11T07:15:09.070", "references": [{"source": "security@wordfence.com", "tags": ["Issue Tracking"], "url": "https://plugins.trac.wordpress.org/browser/wp-2fa/trunk/includes/classes/Admin/class-setup-wizard.php?rev=2940688#L606"}, {"source": "security@wordfence.com", "tags": ["Patch"], "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3009922%40wp-2fa&new=3009922%40wp-2fa&sfp_email=&sfph_mail="}, {"source": "security@wordfence.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0af451be-2477-453c-a230-7f3fb804398b?source=cve"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking"], "url": "https://plugins.trac.wordpress.org/browser/wp-2fa/trunk/includes/classes/Admin/class-setup-wizard.php?rev=2940688#L606"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3009922%40wp-2fa&new=3009922%40wp-2fa&sfp_email=&sfph_mail="}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0af451be-2477-453c-a230-7f3fb804398b?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-352"}], "source": "security@wordfence.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-352"}], "source": "nvd@nist.gov", "type": "Secondary"}]}

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