CVE-2008-2399: Fireftp

High severity, CVSS 9.3. EPSS: 3.5% chance of exploitation in the next 30 days.

Directory traversal vulnerability in the FireFTP add-on before 0.98.20080518 for Firefox allows remote FTP servers to create or overwrite arbitrary files via ..\ (dot dot backslash) sequences in responses to (1) MLSD and (2) LIST commands, a related issue to CVE-2002-1345. NOTE: this can be leveraged for code execution by writing to a Startup folder.

Affected products

• Fireftp Fireftp: up to and including 0.98

Published 2008-05-22. Last modified 2026-06-16.