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Vulnerability record · CVE-2017-3133 · published 12 September 2017

CVE-2017-3133: Fortinet fortios cross-site scripting vulnerability

Fortinet · Fortios

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.

6.1 CVSS 3.0 Medium EPSS 11% · top 4.3% CWE-79 · Cross-site scripting
6.1CVSS 3.0 base score, v2 4.3
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/100009 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039020 Third Party AdvisoryVDB Entry
https://fortiguard.com/advisory/FG-IR-17-104 Vendor Advisory
https://www.exploit-db.com/exploits/42388/ ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/100009 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039020 Third Party AdvisoryVDB Entry
https://fortiguard.com/advisory/FG-IR-17-104 Vendor Advisory
https://www.exploit-db.com/exploits/42388/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-3133), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.