{"id":"CVE-2026-16272","aliases":["EUVD-2026-74769","GHSA-g622-qgc4-8v95"],"status":"published","title":"Client IP Spoofing via Untrusted HTTP Headers in PayTR's PayTR Virtual Pos iFrame API WHMCS Module","description":"Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API WHMCS Module allows Exploitation of Trusted Identifiers.\n\nThis issue affects PayTR Virtual Pos iFrame API WHMCS Module: from v9.0.0 before v9.0.3.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00211,"percentile":0.11434,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-348"],"published":"2026-09-09T08:17:50Z","modified":"2026-10-01T13:17:09Z","products":[{"vendor":"paytr payment and electronic money institution inc.","product":"paytr virtual pos iframe api whmcs module"}],"references":[{"url":"https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1034","tags":["government-resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16272"},{"url":"https://github.com/advisories/GHSA-g622-qgc4-8v95"}],"sources":{"cve":[{"id":"CVE-2026-16272","title":"Client IP Spoofing via Untrusted HTTP Headers in PayTR's PayTR Virtual Pos iFrame API WHMCS Module","description":"Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API WHMCS Module allows Exploitation of Trusted Identifiers.\n\nThis issue affects PayTR Virtual Pos iFrame API WHMCS Module: from v9.0.0 before v9.0.3.","status":"published","published":"2026-09-09T08:17:50.299Z","modified":"2026-10-01T12:42:49.864Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"cna"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T14:20:10.870108Z"}],"euvd":[{"id":"EUVD-2026-74769","description":"Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API WHMCS Module allows Exploitation of Trusted Identifiers.\n\nThis issue affects PayTR Virtual Pos iFrame API WHMCS Module: from v9.0.0 before v9.0.3.","status":"published","published":"2026-09-09T08:17:50Z","modified":"2026-10-01T12:42:49Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-02T17:27:46.486382Z"}],"ghsa":[{"id":"GHSA-g622-qgc4-8v95","title":"Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc....","description":"Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API (v9x) WHMCS Module allows Exploitation of Trusted Identifiers.\n\nThis issue affects PayTR Virtual Pos iFrame API (v9x) WHMCS Module: from v9.0.0 before v9.0.3.","status":"published","published":"2026-09-09T09:32:59Z","modified":"2026-09-09T09:33:00Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T15:11:37.523128Z"}],"nvd":[{"id":"CVE-2026-16272","description":"Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API WHMCS Module allows Exploitation of Trusted Identifiers.\n\nThis issue affects PayTR Virtual Pos iFrame API WHMCS Module: from v9.0.0 before v9.0.3.","status":"published","published":"2026-09-09T09:17:10.72Z","modified":"2026-10-01T13:17:09.753Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T14:12:45.93749Z"}]}}