CVE-2026-16037Callback Authentication Bypass via Timing Attack in PayTR's PayTR Virtual Pos iFrame API WHMCS Module
Updated under an hour ago ()
Does this affect you?
It affects PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API WHMCS Module. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-208
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- TR-CERT
- NVD analysis
- Deferred
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API WHMCS Module paytr_payment_and_electronic_money_institution:paytr_virtual_pos_iframe_api_whmcs_module (from the name) | from v9.0.0 before v9.0.3 | CNA record |
References
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1034government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.