CVE-2026-16037
Callback Authentication Bypass via Timing Attack in PayTR's PayTR Virtual Pos iFrame API WHMCS Module
- State
- Published
- Severity
- 7.5 High
- Published
- Sep 8, 2026
- Updated
- Oct 1, 2026
- Reserved
- Jul 17, 2026
Description
Observable timing discrepancy vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API WHMCS Module allows Black Box Reverse Engineering.
This issue affects PayTR Virtual Pos iFrame API WHMCS Module: from v9.0.0 before v9.0.3.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | TR-CERT |
Weaknesses
- CWE-208 Observable timing discrepancy
Affected Products
| Product | Versions |
|---|---|
PayTR Virtual Pos iFrame API WHMCS ModulePayTR Payment and Electronic Money Institution Inc. |
|
References
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1034government-resource
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.