XSS in Fortinet Fortios
CVE-2017-14186
A Cross-site Scripting (XSS) vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.7, 5.4 and below versions under SSL VPN web portal allows a remote user to inject arbitrary web script or HTML in the context of the victim's browser via the login redir parameter. An URL Redirection attack may also be feasible by injecting an external URL via the affected parameter.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.037 (88.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Fortinet Fortios
- Fortinet, Inc. Fortios — versions 5.2.0 to 5.2.12, 5.4.0 to 5.4.6, 5.0 and below
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@fortinet.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- psirt@fortinet.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- psirt@fortinet.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-14186?
- CVE-2017-14186 is a medium-severity vulnerability in Fortinet Fortios, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2017-11-29.
- How severe is CVE-2017-14186?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2017-14186 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.