Vulnerability intelligence

CVE-2026-67398

Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.7, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoint under specific conditions.

CVSS Score

8.2

High

EPSS — Exploit Probability

0.5%

Riskier than 40% of all CVEs · checked 2026-10-17

Exploitation

Not in CISA KEV

KEV does not include every exploited vulnerability

Remediation

Patch available

Vendor fix published