What’s Vulnerable › Vulnerabilities
CVE-2026-67398
- Severity: high (CVSS 8.2 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-04 · updated 2026-09-14
- Weakness: CWE-862
Description
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.
Affected products
- WebPros WHMCS: from 4.5.0 before 8.12.2; from 8.13.0 before 8.13.7; from 9.0.0 before 9.0.8 — fixed in 8.12.2, 8.13.7, 9.0.8
How to fix
Upgrade to a fixed version: WebPros WHMCS 8.12.2, 8.13.7, 9.0.8. Check the vendor advisory for mitigations.
References
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