{"id":"CVE-2026-16037","title":"Observable timing discrepancy vulnerability in PayTR Payment and Electronic Money Institution Inc","summary":"Observable timing discrepancy vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API (v9x) WHMCS Module allows Black Box Reverse Engineering.\n\nThis issue affects PayTR Virtual Pos iFrame API (v9…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-208"],"vendor":"PayTR Payment and Electronic Money Institution Inc.","product":"PayTR Virtual Pos iFrame API (v9x) WHMCS Module","affected":["paytr_virtual_pos_iframe_api_v9x_whmcs_module >= v9.0.0 < v9.0.3"],"published":"2026-09-08","updated":"2026-09-08","sourceUpdated":"2026-09-08T18:34:41.780","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-16037","references":[{"url":"https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1034","label":"iletisim@usom.gov.tr"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-08T15:47:06.868632Z"},"ingestedAt":"2026-09-08T15:33:26.988Z","epss":0.00303,"epssPercentile":0.23191,"slug":"CVE-2026-16037","body":"## Overview\n\nObservable timing discrepancy vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API (v9x) WHMCS Module allows Black Box Reverse Engineering.\n\nThis issue affects PayTR Virtual Pos iFrame API (v9x) WHMCS Module: from v9.0.0 before v9.0.3.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}