CVE-2025-40631

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

HTTP host header injection vulnerability in Icewarp Mail Server affecting version 11.4.0. By modifying the Host header and adding a payload, arbitrary JavaScript code can be executed on page load. The user must interact with a malicious link to be redirected.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-644

Affected software

Vendor	Product	Versions
Icewarp	Icewarp Mail Server	11.4.0

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-icewarp-mail-serverThird Party Advisory

Timeline

Published: May 16, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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