{"id":"CVE-2025-4295","aliases":["EUVD-2025-22318","GHSA-wwh7-vxvp-9vmx"],"status":"published","title":"Host Header Injection in HotelRunner's B2B","description":"Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.\n\nThis issue affects B2B: before 04.06.2025.","severity":{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00118,"percentile":0.01738,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-297"],"published":"2025-07-22T13:58:00Z","modified":"2026-07-29T14:52:09Z","products":[{"vendor":"hotelrunner","product":"b2b"}],"references":[{"url":"https://www.usom.gov.tr/bildirim/tr-25-0169","tags":["government-resource","broken-link"]},{"url":"https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0169","tags":["government-resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4295"},{"url":"https://github.com/advisories/GHSA-wwh7-vxvp-9vmx"}],"sources":{"cve":[{"id":"CVE-2025-4295","title":"Host Header Injection in HotelRunner's B2B","description":"Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.\n\nThis issue affects B2B: before 04.06.2025.","status":"published","published":"2025-07-22T13:58:00.772Z","modified":"2026-07-29T14:52:09.736Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-297"],"updated_at":"2026-11-02T14:32:48.512547Z"}],"euvd":[{"id":"EUVD-2025-22318","description":"Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.\n\nThis issue affects B2B: before 04.06.2025.","status":"published","published":"2025-07-22T13:58:00Z","modified":"2026-07-29T14:52:09Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:02:30.152277Z"}],"ghsa":[{"id":"GHSA-wwh7-vxvp-9vmx","title":"Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows...","description":"Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.This issue affects B2B: before 04.06.2025.","status":"published","published":"2025-07-22T15:32:52Z","modified":"2026-06-05T18:31:31Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-297"],"updated_at":"2026-11-02T15:08:35.564488Z"}],"nvd":[{"id":"CVE-2025-4295","description":"Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting.\n\nThis issue affects B2B: before 04.06.2025.","status":"published","published":"2025-07-22T14:15:34.983Z","modified":"2026-06-17T09:32:57.853Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-297"],"updated_at":"2026-11-02T14:11:19.382856Z"}]}}