CVE-2020-5195: Cerberusftp FTP Server

Medium severity, CVSS 6.1. EPSS: 1.2% chance of exploitation in the next 30 days.

Reflected XSS through an IMG element in Cerberus FTP Server prior to versions 11.0.1 and 10.0.17 allows a remote attacker to execute arbitrary JavaScript or HTML via a crafted public folder URL. This occurs because of the folder_up.png IMG element not properly sanitizing user-inserted directory paths. The path modification must be done on a publicly shared folder for a remote attacker to insert arbitrary JavaScript or HTML. The vulnerability impacts anyone who clicks the malicious link crafted by the attacker.

Affected products

• Cerberusftp FTP Server: from 10.0.0, before 10.0.17 (fixed in 10.0.17); from 11.0.0, before 11.0.1 (fixed in 11.0.1)

Published 2020-01-13. Last modified 2026-06-17.