CVE-2026-3347

{"id": "CVE-2026-3347", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}]}, "published": "2026-03-21T04:17:21.730", "references": [{"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/options.php#L94", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/tags/1.2/sp.php#L37", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/options.php#L94", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/multi-functional-flexi-lightbox/trunk/sp.php#L37", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a4c0b14a-d039-4008-a433-ab3605e2612c?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "The Multi Functional Flexi Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `arv_lb[message]` parameter in all versions up to, and including, 1.2 due to insufficient input sanitization and output escaping. This is due to the `arv_lb_options_val()` sanitize callback returning user input without any sanitization, and the stored `message` value being output in the `genLB()` function without escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses a page or post with the lightbox enabled."}, {"lang": "es", "value": "El plugin Multi Functional Flexi Lightbox para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s del par\u00e1metro `arv_lb[message]` en todas las versiones hasta la 1.2, inclusive, debido a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes. Esto se debe a que la funci\u00f3n de callback de sanitizaci\u00f3n `arv_lb_options_val()` devuelve la entrada del usuario sin ninguna sanitizaci\u00f3n, y el valor `message` almacenado se muestra en la funci\u00f3n `genLB()` sin escape. Esto hace posible que atacantes autenticados, con acceso de nivel de Administrador, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina o entrada con el lightbox habilitado."}], "lastModified": "2026-04-24T16:27:44.277", "sourceIdentifier": "security@wordfence.com"}