CVE-2026-4283

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "WP DSGVO Tools (GDPR)", "vendor": "legalweb", "versions": [{"lessThanOrEqual": "3.1.38", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The WP DSGVO Tools (GDPR) plugin for WordPress is vulnerable to unauthorized account destruction in all versions up to, and including, 3.1.38. This is due to the `super-unsubscribe` AJAX action accepting a `process_now` parameter from unauthenticated users, which bypasses the intended email-confirmation flow and immediately triggers irreversible account anonymization. This makes it possible for unauthenticated attackers to permanently destroy any non-administrator user account (password randomized, username/email overwritten, roles stripped, comments anonymized, sensitive usermeta wiped) by submitting the victim's email address with `process_now=1`. The nonce required for the request is publicly available on any page containing the `[unsubscribe_form]` shortcode."}, {"lang": "es", "value": "El plugin WP DSGVO Tools (GDPR) para WordPress es vulnerable a la destrucci\u00f3n no autorizada de cuentas en todas las versiones hasta la 3.1.38, inclusive. Esto se debe a que la acci\u00f3n AJAX 'super-unsubscribe' acepta un par\u00e1metro 'process_now' de usuarios no autenticados, lo que omite el flujo de confirmaci\u00f3n de correo electr\u00f3nico previsto y desencadena inmediatamente la anonimizaci\u00f3n irreversible de la cuenta. Esto permite a atacantes no autenticados destruir permanentemente cualquier cuenta de usuario que no sea de administrador (contrase\u00f1a aleatorizada, nombre de usuario/correo electr\u00f3nico sobrescrito, roles eliminados, comentarios anonimizados, metadatos de usuario sensibles borrados) al enviar la direcci\u00f3n de correo electr\u00f3nico de la v\u00edctima con 'process_now=1'. El nonce requerido para la solicitud est\u00e1 disponible p\u00fablicamente en cualquier p\u00e1gina que contenga el shortcode '[unsubscribe_form]'."}], "id": "CVE-2026-4283", "lastModified": "2026-06-17T10:56:21.483", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4283", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-24T13:18:37.216159Z", "version": "2.0.3"}}]}, "published": "2026-03-24T05:16:24.343", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/tags/3.1.38/includes/class-sp-dsgvo-ajax-action.php#L69"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/tags/3.1.38/includes/class-sp-dsgvo-data-collecter.php#L250"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/tags/3.1.38/includes/models/unsubscriber.php#L24"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/tags/3.1.38/public/shortcodes/super-unsubscribe/unsubscribe-form-action.php#L39"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/shapepress-dsgvo/trunk/public/shortcodes/super-unsubscribe/unsubscribe-form-action.php#L39"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset?old_path=/shapepress-dsgvo/tags/3.1.38&new_path=/shapepress-dsgvo/tags/3.1.39"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/21389122-cb39-45d1-a889-b830d3a55603?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.1.38]"}}], "enrichment": {"confidence": 88.0, "confidence_source": "matching", "scores": [{"score": 88.0, "source": "matching"}]}, "original": {"product": "WP DSGVO Tools (GDPR)", "source": "cna", "vendor": "legalweb"}, "product": "wp_dsgvo_tools", "vendor": "legalweb"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-03-24T06:20:53.158842+00:00", "value": {"mitigation_remediation": ["Update the WP DSGVO Tools (GDPR) plugin to version 3.1.39 or later to remove the vulnerable super-unsubscribe action.", "If an immediate update is not possible, temporarily remove or disable pages that use the [unsubscribe_form] shortcode to block public nonce exposure.", "Consider disabling the super-unsubscribe AJAX endpoint or restricting it to authenticated users via custom code or a WordPress security plugin.", "Audit user roles to ensure that sensitive accounts are protected and consider implementing additional role\u2011based restrictions around the plugin functionality."], "summary": {"action": "Immediate Patch", "impact": "Unauthorized Account Destruction"}, "threat_synthesis": {"affected_systems": "Customers running the WP DSGVO Tools (GDPR) WordPress plugin from vendor legalweb, in any version up to and including 3.1.38, are affected. The vulnerability exists in all earlier releases of the plugin as well.", "description_and_impact": "The WP DSGVO Tools (GDPR) plugin allows an unauthenticated user to trigger the super-unsubscribe AJAX action with the process_now parameter, bypassing the intended email confirmation. This action immediately anonymizes and deletes any non-administrator user account, overwriting usernames, emails, roles, and usermeta, and removing associated comments. The result is an irreversible loss of user data and disruption of legitimate user access without any prior authorization.", "risk_and_exploitability": "The CVSS base score of 9.1 marks this as critical, and while the EPSS score is not available, the lack of authentication requirement and the public availability of the nonce on any page featuring the unsubscribe shortcode make exploitation trivially achievable through a simple HTTP request. The vulnerability is not listed in the CISA KEV catalog, but the potential for mass account deletions poses a significant business risk."}}}}, "created": "2026-03-24T10:29:01.858589+00:00", "updated": "2026-03-25T20:40:06.620274+00:00", "vendors": ["legalweb", "legalweb$PRODUCT$wp_dsgvo_tools", "wordpress", "wordpress$PRODUCT$wordpress"]}