CVE-2025-34110

CRITICAL

ColoradoFTP Server < 1.3 Build 8 - Path Traversal

Title source: llm

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.

Exploits (2)

exploitdb WRITEUP

by Rv3Laboratory · textwebappsjava

https://www.exploit-db.com/exploits/40231

View Code ZIP pw:eip

metasploit WORKING POC

by h00die <[email protected]>, RvLaboratory · rubypocwin

https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/ftp/colorado_ftp_traversal.rb

View Code ZIP pw:eip

References (4)

[Various Sources] https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/ftp/colorado_ftp_traversal.rb

[Exploit, Third Party Advisory] https://www.exploit-db.com/exploits/40231

[Third Party Advisory] https://www.vulncheck.com/advisories/colorado-ftp-server-path-traversal-information-disclosure

[Patch] https://bitbucket.org/nolife/coloradoftp/commits/16a60c4a74ef477cd8c16ca82442eaab2fbe8c86

Scores

CVSS v4 9.3

EPSS 0.4128

EPSS Percentile 97.4%

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

Details

CWE

CWE-22 CWE-306 CWE-552

Status published

Products (1)

ColoradoFTP/Server < 1.3 Build 8

Published Jul 15, 2025

Tracked Since Feb 18, 2026