01 Record
CVE-2026-16272
Client IP Spoofing via Untrusted HTTP Headers in PayTR's PayTR Virtual Pos iFrame API (v9x) WHMCS Module
CriticalPUBLISHEDCNA: TR-CERT
CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
02 Description
Client IP Spoofing via Untrusted HTTP Headers in PayTR's PayTR Virtual Pos iFrame API (v9x) WHMCS Module
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Not recorded
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-09 08:17Z1 HR AGO
- Last updated
- 2026-09-09 08:17Z1 HR AGO
- Reserved
- 2026-07-20
- Assigning CNA
- TR-CERT
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 9.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-348Use of Less Trusted SourceBase
- Data version
- 5.2
- Document digest
- 72baa62a548fe66fa543f4c3fe67e4e39adb4bd39623e60527ccfc5a07917d07
05 Affected products
VendorProductVersionsPlatforms
PayTR Payment and Electronic Money Institution Inc.PayTR Virtual Pos iFrame API (v9x) WHMCS Modulev9.0.0 to < v9.0.3—
06 References
- siberguvenlik.gov.trhttps://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1034