CVE-2019-5586

Name: CVE-2019-5586
Creator: NVD / NIST
Published: 2019-06-04T22:29:00.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.81%

Last modified Jun 17, 2026

CVE-2019-5586 is a vulnerability of currently unknown severity. A reflected Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 5.2.0 to 5.6.10, 6.0.0 to 6.0.4 under SSL VPN web portal may allow an attacker to execute unauthorized malicious script code via the "param" parameter of the error process HTTP requests.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

A reflected Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 5.2.0 to 5.6.10, 6.0.0 to 6.0.4 under SSL VPN web portal may allow an attacker to execute unauthorized malicious script code via the "param" parameter of the error process HTTP requests.

Metrics

EPSS Probability

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Fortinet	Fortios	>= 5.2.0, <= 6.0.4

References

http://www.securityfocus.com/bid/108610
https://fortiguard.com/advisory/FG-IR-19-034Mitigation, Vendor Advisory
http://www.securityfocus.com/bid/108610
https://fortiguard.com/advisory/FG-IR-19-034Mitigation, Vendor Advisory

Timeline

Published: Jun 4, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5586?

How severe is CVE-2019-5586?

Severity scoring for CVE-2019-5586 is pending analysis. The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5586?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-5586?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST