XSS in Fortinet Fortios

CVE-2017-3133

A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.6.0 and earlier allows attackers to execute unauthorized code or commands via the Replacement Message HTML for SSL-VPN.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.107 (95.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-3133?
CVE-2017-3133 is a medium-severity vulnerability in Fortinet Fortios, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-09-12.
How severe is CVE-2017-3133?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2017-3133 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.