Is CVE-2026-16037 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-16037?

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

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CVE-2026-16037

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.