CVE-2019-5586
A reflected Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 5.2.0 to 6.0.4 under SSL...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2019-5586- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2019-5586- Updated
- 2026-11-02
EUVDEUVD-2019-15161 No score
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.
- Record
EUVD-2019-15161- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h6wj-gcf6-rxw5 No score
A reflected Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 5.2.0 to 6.0.4 under SSL...
A reflected Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 5.2.0 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.
- Record
GHSA-h6wj-gcf6-rxw5- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-5586 is a medium vulnerability (CVSS 6.1) in Fortinet Fortios, published June 4, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.83%, the 57th percentile. No source names a fixed version.