High severity7.5NVD Advisory· Published Sep 8, 2026

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.

Affected products

PayTR Payment And Electronic Money Institution Inc./PayTR Virtual Pos iFrame API (v9x) WHMCS Modulellm-create
Range: v9.0.0 <= v < v9.0.3

Patches

Vulnerability mechanics

References

siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1034nvd

News mentions

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