Improper Payment Validation in PayTR's PayTR Virtual Pos iFrame API (v9x) WHMCS Module

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Affected scope and exposure questions

The current feed maps PayTR Payment and Electronic Money Institution Inc./PayTR Virtual Pos iFrame API (v9x) WHMCS Module (generic). Check affected ranges and fixed versions before updating.

Recommended response

1. 1Check inventory. Check lockfiles and deployed manifests for PayTR Payment and Electronic Money Institution Inc./PayTR Virtual Pos iFrame API (v9x) WHMCS Module.
2. 2Review the reported fix. Update PayTR Payment and Electronic Money Institution Inc./PayTR Virtual Pos iFrame API (v9x) WHMCS Module to v9.0.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

1. Published upstream

   Sep 8, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

2. Source modified

   Sep 8, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

3. First seen by HOL

   Sep 8, 2026

Sources and claim methodology

• Source referencesiberguvenlik.gov.tr

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