CVE-2019-5590 Cross-site scripting in FortiWeb

What is CVE-2019-5590?

CVE-2019-5590 is a medium-severity cross-site scripting vulnerability in Fortinet Fortiweb, published on 28 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The URL part of the report message is not encoded in Fortinet FortiWeb 6.0.2 and below which may allow an attacker to execute unauthorized code or commands (Cross Site Scripting) via attack reports generated in HTML form.

Weakness: CWE-79

Which versions are affected by CVE-2019-5590?

It affects 1 product.

Products include Fortinet Fortiweb.

How do I fix CVE-2019-5590?

No fix has been published for CVE-2019-5590 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2019-5590 being exploited?

There is no known exploitation of CVE-2019-5590 in the wild and no public exploit code.

Other vulnerabilities in Fortinet Fortiweb

• CVE-2025-25257 Fortinet FortiWeb SQL Injection Exploited Critical 9.6
• CVE-2025-64446 Fortinet FortiWeb Path Traversal Exploited Critical 9.4
• CVE-2025-58034 Fortinet FortiWeb OS Command Injection Exploited Medium 6.7
• CVE-2020-29015 SQL injection in Fortinet FortiWeb Critical 9.8
• CVE-2020-29016 Memory corruption in Fortinet FortiWeb Critical 9.8

All Fortinet Fortiweb vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xmwv-j3qp-w2f2.