CVE-2025-40631 LOW

CVE-2025-40631: HTTP host header injection vulnerability in IceWarp Mail Server

Vendor Icewarp
Product Icewarp Mail Server
Weakness CWE-644
Published May 16, 2025
Last update May 16, 2025
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CVSS base score

2.0/10
Attack vector Adjacent
Attack complexity High
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 16, 2025 CVE published
May 16, 2025 Record updated