Vulnerability in Quick Paypal Payments

CVE-2026-17008

The Quick Paypal Payments WordPress plugin through 5.7.50 does not verify the paid amount, receiver, or payment status in its PayPal IPN handler and marks an order paid on an order-token match alone, so a buyer who pays an arbitrary small amount can have a full-price order marked paid.

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.002 (4.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-17008: held from 0.001 to 0.002.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001

Affected products

  • Quick Paypal Payments — versions 0

References

Frequently asked questions

What is CVE-2026-17008?
CVE-2026-17008 is a medium-severity vulnerability in Quick Paypal Payments, classified under CWE-345 INSUFFICIENT VERIFICATION OF DATA AUTHENTICITY. CVSS score: 5.3/10. Published 2026-08-12.
How severe is CVE-2026-17008?
Medium severity. CVSS v3 base score is 5.3 out of 10.