How severe is CVE-2026-16037?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Paytr Payment And Electronic Money Institution Inc. Virtual Pos Iframe API (V9x) Whmcs Module

CVE-2026-16037

Observable timing discrepancy vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API (v9x) WHMCS Module allows Black Box Reverse Engineering. This issue affects PayTR Virtual Pos iFrame API (v9x) WHMCS Module: from v9.0.0 before v9.0.3.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Paytr Payment And Electronic Money Institution Inc. Virtual Pos Iframe Api (V9x) Whmcs Module

Weakness classification (CWE)

CWE-208

References

iletisim@usom.gov.tr (government-resource)

Frequently asked questions

What is CVE-2026-16037?: CVE-2026-16037 is a high-severity vulnerability in Paytr Payment And Electronic Money Institution Inc. Virtual Pos Iframe API (V9x) Whmcs Module, classified under CWE-208. CVSS score: 7.5/10. Published 2026-09-08.
How severe is CVE-2026-16037?: High severity. CVSS v3 base score is 7.5 out of 10.