CVE-2026-7430

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Post Snippets \u2013 Custom WordPress Code Snippets Customizer", "vendor": "saadiqbal", "versions": [{"lessThanOrEqual": "4.0.19", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Post Snippets plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 4.0.19. This is due to insufficient output escaping of imported snippet content when rendering JavaScript variables in the post editor. Specifically, the `jqueryUiDialog()` method in `WPEditor.php` embeds snippet content directly into JavaScript string literals without escaping double quotes (the quote-escaping code on line 214 is commented out). When snippets are imported via the Import/Export feature, the content bypasses WordPress's `wp_magic_quotes()` (which would otherwise add protective backslashes), allowing double quotes in snippet content to break out of the JavaScript string context. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts via a malicious import file that execute whenever any administrator accesses a post editor page. Please note that this does not affect single-site installations as administrators already have the `unfiltered_html` capability."}, {"lang": "es", "value": "El plugin Post Snippets para WordPress es vulnerable a cross-site scripting almacenado en todas las versiones hasta la 4.0.19, inclusive. Esto se debe a un escape de salida insuficiente del contenido de fragmentos importados al renderizar variables de JavaScript en el editor de entradas. Espec\u00edficamente, el m\u00e9todo 'jqueryUiDialog()' en 'WPEditor.php' incrusta el contenido del fragmento directamente en literales de cadena de JavaScript sin escapar las comillas dobles (el c\u00f3digo de escape de comillas en la l\u00ednea 214 est\u00e1 comentado). Cuando los fragmentos se importan a trav\u00e9s de la funci\u00f3n de Importaci\u00f3n/Exportaci\u00f3n, el contenido omite la funci\u00f3n 'wp_magic_quotes()' de WordPress (que de otro modo a\u00f1adir\u00eda barras invertidas protectoras), permitiendo que las comillas dobles en el contenido del fragmento salgan del contexto de cadena de JavaScript. Esto hace posible que atacantes autenticados, con acceso de nivel de Administrador y superior, inyecten scripts web arbitrarios a trav\u00e9s de un archivo de importaci\u00f3n malicioso que se ejecutan cada vez que cualquier administrador accede a una p\u00e1gina del editor de entradas. Tenga en cuenta que esto no afecta a las instalaciones de sitio \u00fanico, ya que los administradores ya tienen la capacidad 'unfiltered_html'."}], "id": "CVE-2026-7430", "lastModified": "2026-07-21T12:10:00.090", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.3, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-7430", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-29T10:02:50.720346Z", "version": "2.0.3"}}]}, "published": "2026-05-29T04:17:10.563", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.0.19/src/PostSnippets/DBTable.php#L114"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.0.19/src/PostSnippets/WPEditor.php#L218"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.1.1/src/PostSnippets/WPEditor.php#L20"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.1.1/src/PostSnippets/WPEditor.php#L221"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.1.1/src/PostSnippets/WPEditor.php#L227"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/post-snippets/trunk/src/PostSnippets/DBTable.php#L114"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/post-snippets/trunk/src/PostSnippets/WPEditor.php#L218"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/59dc2448-491c-478f-a784-c727057b126b?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

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