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{"cveTags": [], "descriptions": [{"lang": "en", "value": "The Flex Guten plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u2018thumbnailHoverEffect\u2019 parameter in all versions up to, and including, 1.2.5 due to insufficient input sanitization and output escaping. 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 complemento Flex Guten para WordPress es vulnerable a Cross-Site Scripting almacenado a trav\u00e9s del par\u00e1metro 'thumbnailHoverEffect' en todas las versiones hasta la 1.2.5 incluida, debido a una depuraci\u00f3n de entrada y un escape de salida insuficientes. Esto permite a atacantes autenticados, con acceso de colaborador o superior, inyectar scripts web arbitrarios en las p\u00e1ginas que se ejecutar\u00e1n al acceder un usuario a una p\u00e1gina inyectada."}], "id": "CVE-2025-6256", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}]}, "published": "2025-08-06T02:15:49.313", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/flex-guten/trunk/build/blocks/dwp-latest-posts/render.php#L107"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset/3340743/"}, {"source": "security@wordfence.com", "url": "https://wordpress.org/plugins/flex-guten/#developers"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ca149cc0-b256-41cd-b64d-dd905bd72602?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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{"analysis": {"en": {"generated_at": "2026-04-20T20:00:22.211511+00:00", "value": {"mitigation_remediation": ["Upgrade Flex Guten to any version newer than 1.2.5 to remove the vulnerability.", "If upgrading is not immediately possible, restrict Contributor permissions on posts that use the thumbnailHoverEffect feature.", "As a temporary workaround, configure the plugin or use a filter to strip or escape the thumbnailHoverEffect parameter before rendering to users."], "summary": {"action": "Apply Patch", "impact": "Stored Cross\u2011Site Scripting (XSS) via authenticated contributor access"}, "threat_synthesis": {"affected_systems": "The flaw affects the Flex Guten \u2013 Multile Blocks plugin from dragwp in all versions up to and including 1.2.5. Users running any of these releases and granting Contributor\u2011level access to others are at risk.", "description_and_impact": "The Flex Guten WordPress plugin is vulnerable to a stored Cross\u2011Site Scripting flaw caused by insufficient sanitization of the thumbnailHoverEffect parameter. The vulnerability allows an authenticated attacker with Contributor authority or higher to inject arbitrary scripts that execute when a user views a page containing the injected content. This weakness is classified as CWE\u201179.", "risk_and_exploitability": "The severity is moderate with a CVSS score of 6.4, and the EPSS score is less than 1%, indicating a low likelihood of exploitation. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires authenticated Contributor\u2011level access, so it is a local threat rather than remote unauthenticated."}}}}, "created": "2025-08-06T07:50:26.218570+00:00", "updated": "2026-04-20T20:15:06.213285+00:00", "vendors": ["wordpress", "wordpress$PRODUCT$wordpress"]}