Vulnerability in Wftpserver Wing FTP Server
CVE-2025-27889
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.4 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Wftpserver Wing FTP Server — versions 0
- Wftpserver Wing FTP Server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wftpserver.com/wftpserver.htm (Broken Link)
- www.rcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-47812/ (Exploit, Third Party Advisory)
- github.com/MrTuxracer/advisories/blob/master/CVEs/CVE-2025-27889.txt (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-27889?
- CVE-2025-27889 is a low-severity vulnerability in Wftpserver Wing FTP Server, classified under CWE-15. CVSS score: 3.4/10. Published 2025-07-10.
- How severe is CVE-2025-27889?
- Low severity. CVSS v3 base score is 3.4 out of 10.
- Is CVE-2025-27889 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.