CVE-2025-27889 Open redirect in Wing FTP Server
Attackers can inject arbitrary links to disclose cleartext passwords when users click crafted links in Wing FTP Server.
- 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-2025-27889?
CVE-2025-27889 is a low-severity vulnerability in wftpserver Wing FTP Server, published on 10 Jul 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
Wing FTP Server before 7.4.4 does not properly validate and sanitize the url parameter of the downloadpass.html endpoint, allowing injection of an arbitrary link. If a user clicks a crafted link, this discloses a cleartext password to the attacker.
Weakness: CWE-15
Which versions are affected by CVE-2025-27889?
It affects 1 product.
Products include Wftpserver Wing Ftp Server.
How do I fix CVE-2025-27889?
No fix has been published for CVE-2025-27889 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-27889 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-27889 exists.
Other vulnerabilities in wftpserver Wing FTP Server
- CVE-2025-47812 Wing FTP Server Improper Neutralization of Null Byte or NUL Character
- CVE-2025-47813 Wing FTP Server Information Disclosure
- CVE-2026-44403 Wing FTP Server < 8.1.3 Authenticated Remote Code Execution via Session Serialization
- CVE-2020-37032 Wing FTP Server 6.3.8 - Remote Code Execution
- CVE-2019-25267 Wing FTP Server 6.0.7 - Unquoted Service Path
Sources
Also known as GHSA-vv9j-pvh3-xwg4.