Vulnerability · Published Sep 8, 2026 · Assigned by TR-CERT
CVE-2026-16025Improper Payment Validation in PayTR's PayTR Virtual Pos iFrame API WHMCS Module
High 7.5
In plain English
A high-severity security flaw in PayTR Virtual Pos iFrame API WHMCS Module from PayTR Payment and Electronic Money Institution Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper validation of specified quantity in input vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API WHMCS Module allows Input Data Manipulation. This issue affects PayTR Virtual Pos iFrame API WHMCS Module: from v9.0.0 before v9.0.3.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| PayTR Payment and Electronic Money Institution Inc. | PayTR Virtual Pos iFrame API WHMCS Module | v9.0.0 – before v9.0.3 |
Weakness: CWE-1284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1034 government-resource