What is CVE-2026-9189?

CVE-2026-9189 is a medium-severity vulnerability in Scottpaterson Contact Form 7 – Paypal & Stripe Add-on, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-05-29.

How severe is CVE-2026-9189?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Scottpaterson Contact Form 7 – Paypal & Stripe Add-on

CVE-2026-9189

The Contact Form 7 – PayPal & Stripe Add-on plugin for WordPress is vulnerable to Payment Bypass via Insufficient Verification of Data Authenticity in all versions up to, and including, 2.4.9. Although `cf7pp_paypal_ipn_handler()` correctl…

EPSS: 0.000 (13.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Scottpaterson Contact Form 7 – Paypal & Stripe Add-on — versions 0

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

Frequently asked questions

What is CVE-2026-9189?: CVE-2026-9189 is a medium-severity vulnerability in Scottpaterson Contact Form 7 – Paypal & Stripe Add-on, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-05-29.
How severe is CVE-2026-9189?: Medium severity. CVSS v3 base score is 5.3 out of 10.