CVE-2025-13384
The CP Contact Form with PayPal plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.56.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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).
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/cp-contact-form-with-paypal/tags/1.3.56/cp_contactformpp_functions.php#L541
- https://plugins.trac.wordpress.org/browser/cp-contact-form-with-paypal/tags/1.3.56/cp_contactformpp_functions.php#L877
- https://plugins.trac.wordpress.org/browser/cp-contact-form-with-paypal/tags/1.3.56/cp_contactformpp_functions.php#L925
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3399104%40cp-contact-form-with-paypal&new=3399104%40cp-contact-form-with-paypal&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6639c3d8-8f26-4ee5-8c4b-2efcf34668a2?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.