VulnerabilityDeferred

CVE-2026-16037

Observable timing discrepancy vulnerability in PayTR Payment and Electronic Money Institution Inc.

HIGH 7.5EPSS 0.30%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.30% probability · 23th percentile
CISA KEV: Not listed
Weakness: CWE-208
Source: iletisim@usom.gov.tr

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1034

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.