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HIGH

CVE-2026-16037

CVSS v3

7.5

HIGH

EPSS Score

0.3 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

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.

Technical details

Published
2026-09-08
Last Modified
2026-09-08

Frequently asked questions

What is 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.

Is CVE-2026-16037 actively exploited?

Active exploitation of CVE-2026-16037 has not been confirmed. Its EPSS score was 0.3% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-16037?

CVE-2026-16037 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2026-16037 affecting your environment?

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