XSS in Cerberusftp FTP Server
CVE-2020-5195
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (68.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
References
- support.cerberusftp.com/hc/en-us/community/topics/360000164199-Announcements (Release Notes, Vendor Advisory)
- www.doyler.net/security-not-included/cerberus-ftp-vulnerabilities (Third Party Advisory)
- www.cerberusftp.com/xss-vulnerability-in-public-shares-fixed-in-cerberus-ftp-se… (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-5195?
- CVE-2020-5195 is a medium-severity vulnerability in Cerberusftp FTP Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-01-13.
- How severe is CVE-2020-5195?
- Medium severity. CVSS v3 base score is 6.1 out of 10.