7.5
HIGH CVSS 3.1
CVE-2026-16025
Improper Payment Validation in PayTR's PayTR Virtual Pos iFrame API (v9x) WHMCS Module
Description

Improper validation of specified quantity in input vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API (v9x) WHMCS Module allows Input Data Manipulation. This issue affects PayTR Virtual Pos iFrame API (v9x) WHMCS Module: from v9.0.0 before v9.0.3.

INFO

Published Date :

Sept. 8, 2026, 3:06 p.m.

Last Modified :

Sept. 8, 2026, 3:06 p.m.

Remotely Exploit :

Yes !

Source :

TR-CERT
Affected Products

The following products are affected by CVE-2026-16025 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH ca940d4e-fea4-4aa2-9a58-591a58b1ce21
CVSS 3.1 HIGH MITRE-CVE
Solution
Update the WHMCS module to a version that addresses input data manipulation vulnerabilities.
  • Update the WHMCS module to version 9.0.3 or later.
  • Verify input validation for quantity fields.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-16025 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.