CVE-2025-4295

MEDIUM 4.6

Host Header Injection in HotelRunner's B2B

CVSS Score

4.6

EPSS Score

0.1%

EPSS Percentile

21th

Improper Validation of Certificate with Host Mismatch vulnerability in HotelRunner B2B allows HTTP Response Splitting. This issue affects B2B: before 04.06.2025.

CWE	CWE-297
Vendor	hotelrunner
Product	b2b
Published	Jul 22, 2025
Last Updated	Jun 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

HotelRunner / B2B

0 < 04.06.2025

References

NVD ↗ CVE.org ↗ EPSS Data ↗

usom.gov.tr: https://www.usom.gov.tr/bildirim/tr-25-0169 siberguvenlik.gov.tr: https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0169

Credits

Berat ARSLAN Priente Software Inc.