CVE-2025-34110
ColoradoFTP Server <= 1.3 Build 8 Path Traversal Information Disclosure
- State
- Published
- Severity
- 9.3 Critical
- Published
- Jul 15, 2025
- Updated
- May 15, 2026
- Reserved
- Apr 15, 2025
Description
A directory traversal vulnerability exists in ColoradoFTP Server ≤ 1.3 Build 8 for Windows, allowing unauthenticated attackers to read or write arbitrary files outside the configured FTP root directory. The flaw is due to insufficient sanitation of user-supplied file paths in the FTP GET and PUT command handlers. Exploitation is possible by submitting traversal sequences during FTP operations, enabling access to system-sensitive files. This issue affects only the Windows version of ColoradoFTP.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
ServerColoradoFTP |
|
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/ftp/colorado_ftp_traversal.rbexploit
- https://www.exploit-db.com/exploits/40231exploit
- https://bitbucket.org/nolife/coloradoftp/commits/16a60c4a74ef477cd8c16ca82442eaab2fbe8c86patch
- https://www.vulncheck.com/advisories/colorado-ftp-server-path-traversal-information-disclosurethird-party-advisory
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