CVE-2025-40630 Open redirection vulnerability in IceWarp Mail Server
Attackers can redirect users to malicious domains via crafted URLs in IceWarp Mail Server, potentially facilitating phishing attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-40630?
CVE-2025-40630 is a medium-severity vulnerability in Icewarp Mail Server, published on 16 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Open redirection vulnerability in IceWarp Mail Server affecting version 11.4.0. This vulnerability allows an attacker to redirect a user to any domain by sending a malicious URL to the victim, for example “ https://icewarp.domain.com//<MALICIOUS_DOMAIN>/%2e%2e” https://icewarp.domain.com///%2e%2e” . This vulnerability has been tested in Firefox.
Weakness: CWE-601
Which versions are affected by CVE-2025-40630?
It affects 1 product.
Products include Icewarp Mail Server.
How do I fix CVE-2025-40630?
No fix has been published for CVE-2025-40630 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-40630 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-40630 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in Icewarp Mail Server
Sources
Also known as GHSA-hf55-g8pm-mm27.