CP Contact Form with PayPal <= 1.3.56 - Missing Authorization to Unauthenticated Arbitrary Payment Confirmation
| CVE | CVE-2025-13384 |
|---|---|
| CVSS | 7.5 (High) |
| Publicly Published | November 21, 2025 |
| Last Updated | November 22, 2025 |
| Researcher |
Md. Moniruzzaman Prodhan (NomanProdhan)
- Knight Squad
|
Description
The CP Contact Form with PayPal plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.56. This is due to the plugin exposing an unauthenticated IPN-like endpoint (via the 'cp_contactformpp_ipncheck' query parameter) that processes payment confirmations without any authentication, nonce verification, or PayPal IPN signature validation. This makes it possible for unauthenticated attackers to mark form submissions as paid without making actual payments by sending forged payment notification requests with arbitrary POST data (payment_status, txn_id, payer_email).
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for CP Contact Form with PayPal
| Software Type | Plugin |
|---|---|
| Software Slug | cp-contact-form-with-paypal (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.3.57, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in CP Contact Form with PayPal
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | CP Contact Form with Paypal <= 1.3.61 - Authenticated (Contributor+) SQL Injection | CVE-2026-32433 | Nguyen Ba Khanh | March 2, 2026 | |
| 2 | CP Contact Form with PayPal <= 1.3.52 - Cross-Site Request Forgery | CVE-2024-13758 | Krzysztof Zając | January 29, 2025 | |
| 3 | CP Contact Form with Paypal <= 1.3.34 - Authenticated Feedback Submission | CVE-2023-27460 | István Márton | March 1, 2023 | |
| 4 | CP Contact Form with PayPal <= 1.3.01 - Cross-Site Scripting | CVE-2019-14784 | June 23, 2019 | ||
| 5 | CP Contact Form with PayPal <= 1.3.01 - Cross-Site Scripting | CVE-2019-14785 | June 23, 2019 | ||
| 6 | CP Contact Form with PayPal < 1.1.6 - Cross-Site Request Forgery | CVE-2015-9233 | Nitin Venkatesh | July 9, 2015 | |
| 7 | CP Contact Form with PayPal < 1.1.6 - SQL Injection | CVE-2015-9234 | Nitin Venkatesh | July 9, 2015 |
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