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CVE-2019-5586

20
FAUCET Score

CVE-2019-5586 describes a reflected Cross-Site Scripting (XSS) vulnerability affecting Fortinet FortiOS versions 5.2.0 through 5.6.10 and 6.0.0 through 6.0.4, specifically within the SSL VPN web portal. An unauthenticated attacker could exploit this by injecting malicious script code via the "param" parameter in error process HTTP requests. Rated 6.1 MEDIUM on the CVSS scale, this vulnerability requires user interaction (UI:R) but has low impact on confidentiality and integrity (C:L/I:L). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.2.0, <= 6.0.4CPE matchmatch criteria
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.83%
Probability of exploitation in next 30 days
EPSS Percentile
53.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0083 is in the 63rd percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

fortinetworkaround availablevia nvd_reference
View patch

References

fortiguard.com / advisory/FG-IR-19-034
MitigationVendor Advisory
securityfocus.com / bid/108610