{"id":"CVE-2026-18029","aliases":["EUVD-2026-49752","GHSA-f83j-v8r3-vfhv"],"status":"published","title":"Insufficient validation of payment status in pretix-girosolution","description":"Our payment integration with GiroCheckout did not properly validate \npayment status responses. An attacker could use a successful payment \nstatus response from one payment and supply it to the system for a \ndifferent payment, gaining access to multiple valid tickets with only \none payment.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00331,"percentile":0.26496,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-841"],"published":"2026-07-28T10:39:29Z","modified":"2026-10-24T13:10:00Z","products":[{"vendor":"pretix gmbh","product":"pretix-girosolution"}],"references":[{"url":"https://pretix.eu/about/en/blog/20260728-release-2026-6-1/","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18029"},{"url":"https://pretix.eu/about/en/blog/20260728-release-2026-6-1"},{"url":"https://github.com/advisories/GHSA-f83j-v8r3-vfhv"}],"sources":{"cve":[{"id":"CVE-2026-18029","title":"Insufficient validation of payment status in pretix-girosolution","description":"Our payment integration with GiroCheckout did not properly validate \npayment status responses. An attacker could use a successful payment \nstatus response from one payment and supply it to the system for a \ndifferent payment, gaining access to multiple valid tickets with only \none payment.","status":"published","published":"2026-07-28T10:39:29.727Z","modified":"2026-07-28T12:36:18.719Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-841"],"updated_at":"2026-11-02T14:20:12.60856Z"}],"euvd":[{"id":"EUVD-2026-49752","description":"Our payment integration with GiroCheckout did not properly validate \npayment status responses. An attacker could use a successful payment \nstatus response from one payment and supply it to the system for a \ndifferent payment, gaining access to multiple valid tickets with only \none payment.","status":"published","published":"2026-07-28T10:39:29Z","modified":"2026-07-28T12:36:18Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:02:31.827348Z"}],"ghsa":[{"id":"GHSA-f83j-v8r3-vfhv","title":"Our payment integration with GiroCheckout did not properly validate \npayment status responses. An...","description":"Our payment integration with GiroCheckout did not properly validate \npayment status responses. An attacker could use a successful payment \nstatus response from one payment and supply it to the system for a \ndifferent payment, gaining access to multiple valid tickets with only \none payment.","status":"published","published":"2026-07-28T12:31:20Z","modified":"2026-07-28T12:31:20Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-841"],"updated_at":"2026-11-02T15:09:51.995252Z"}],"nvd":[{"id":"CVE-2026-18029","description":"Our payment integration with GiroCheckout did not properly validate \npayment status responses. An attacker could use a successful payment \nstatus response from one payment and supply it to the system for a \ndifferent payment, gaining access to multiple valid tickets with only \none payment.","status":"published","published":"2026-07-28T11:17:03.677Z","modified":"2026-10-24T13:10:00.147Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-841"],"updated_at":"2026-11-02T14:12:33.249634Z"}]}}