{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6455", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-04-16T20:17:12.219Z", "datePublished": "2026-05-28T06:45:41.596Z", "dateUpdated": "2026-05-28T06:45:41.596Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-05-28T06:45:41.596Z"}, "affected": [{"vendor": "yudiz", "product": "WP Contact Form 7 DB Handler", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "3.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The WP Contact Form 7 DB Handler plugin for WordPress is vulnerable to Cross-Site Request Forgery leading to Arbitrary File Deletion via SQL Injection and PHP Object Injection in versions up to and including 3.0. This is due to a missing nonce verification in the process_bulk_action() function, the nonce check is only executed when _wpnonce is present in the POST body, allowing it to be trivially bypassed by omitting the field, combined with the use of an unsanitized, unparameterized user-supplied value in a numeric SQL context (WHERE ID = $ID) and the unsafe deserialization of the query result's post_content field. An attacker can craft a CSRF page that tricks a logged-in administrator into triggering a UNION-based SQL injection payload (using CHAR() to avoid esc_sql quote-escaping) that returns a malicious serialized PHP array as post_content; upon deserialization, array values associated with keys containing 'ys_cfdbh_file' are used as file paths appended to the uploads directory path without any path traversal validation, and then passed to wp_delete_file(), allowing the attacker to delete arbitrary files on the server (e.g., wp-config.php, system files)."}], "title": "WP Contact Form 7 DB Handler <= 3.0 - Cross-Site Request Forgery to Arbitrary File Deletion via 'contact_form' Parameter", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/96cdba03-7385-4374-915d-061be0276a95?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/trunk/include/form-inner-page-class.php#L615"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/tags/3.0/include/form-inner-page-class.php#L615"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/trunk/include/form-inner-page-class.php#L589"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/tags/3.0/include/form-inner-page-class.php#L589"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/trunk/include/form-inner-page-class.php#L605"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/tags/3.0/include/form-inner-page-class.php#L605"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/trunk/include/form-inner-page-class.php#L607"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/tags/3.0/include/form-inner-page-class.php#L607"}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3520240%40wp-contact-form-7-db-handler&new=3520240%40wp-contact-form-7-db-handler&sfp_email=&sfph_mail="}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-352 Cross-Site Request Forgery (CSRF)", "cweId": "CWE-352", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H", "baseScore": 8.1, "baseSeverity": "HIGH"}}], "credits": [{"lang": "en", "type": "finder", "value": "Louis Deschanel"}, {"lang": "en", "type": "finder", "value": "Pascal SUN"}], "timeline": [{"time": "2026-04-16T20:32:22.000Z", "lang": "en", "value": "Vendor Notified"}, {"time": "2026-05-27T18:05:02.000Z", "lang": "en", "value": "Disclosed"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The WP Contact Form 7 DB Handler plugin for WordPress is vulnerable to Cross-Site Request Forgery leading to Arbitrary File Deletion via SQL Injection and PHP Object Injection in versions up to and including 3.0. This is due to a missing nonce verification in the process_bulk_action() function, the nonce check is only executed when _wpnonce is present in the POST body, allowing it to be trivially bypassed by omitting the field, combined with the use of an unsanitized, unparameterized user-supplied value in a numeric SQL context (WHERE ID = $ID) and the unsafe deserialization of the query result's post_content field. An attacker can craft a CSRF page that tricks a logged-in administrator into triggering a UNION-based SQL injection payload (using CHAR() to avoid esc_sql quote-escaping) that returns a malicious serialized PHP array as post_content; upon deserialization, array values associated with keys containing 'ys_cfdbh_file' are used as file paths appended to the uploads directory path without any path traversal validation, and then passed to wp_delete_file(), allowing the attacker to delete arbitrary files on the server (e.g., wp-config.php, system files)."}], "id": "CVE-2026-6455", "lastModified": "2026-05-28T08:16:36.477", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "security@wordfence.com", "type": "Primary"}]}, "published": "2026-05-28T08:16:36.477", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/tags/3.0/include/form-inner-page-class.php#L589"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/tags/3.0/include/form-inner-page-class.php#L605"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/tags/3.0/include/form-inner-page-class.php#L607"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/tags/3.0/include/form-inner-page-class.php#L615"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/trunk/include/form-inner-page-class.php#L589"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/trunk/include/form-inner-page-class.php#L605"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/trunk/include/form-inner-page-class.php#L607"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-contact-form-7-db-handler/trunk/include/form-inner-page-class.php#L615"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3520240%40wp-contact-form-7-db-handler&new=3520240%40wp-contact-form-7-db-handler&sfp_email=&sfph_mail="}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/96cdba03-7385-4374-915d-061be0276a95?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-352"}], "source": "security@wordfence.com", "type": "Primary"}]}

{}

{"created": "2026-05-28T08:30:12.265432+00:00", "updated": "2026-05-28T08:30:12.265442+00:00", "vendors": []}