CVE-2026-59838

MEDIUM CVSS 3.1: 4.8 EPSS 0.14%
Updated Jul 15, 2026
Fortinet
Parameter Value
CVSS 4.8 (MEDIUM)
Affected Versions 6.4.0 — 7.3.5
Fixed In 7.2.7
Type CWE-80 (Improper Neutralization of Script-Related HTML Tags (XSS))
Vendor Fortinet
Public PoC No

A improper neutralization of script-related html tags in a web page (basic xss) vulnerability in Fortinet FortiSIEM 7.4.0, FortiSIEM 7.3.0 through 7.3.4, FortiSIEM 7.2.0 through 7.2.6, FortiSIEM 7.1 all versions, FortiSIEM 7.0 all versions, FortiSIEM 6.7 all versions, FortiSIEM 6.6 all versions, FortiSIEM 6.5 all versions, FortiSIEM 6.4 all versions may allow attacker to execute unauthorized code or commands via <insert attack vector here>

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products 3

Configuration From (including) Up to (excluding)
Fortinet Fortisiem
cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:*
6.4.0 7.2.7
Fortinet Fortisiem
cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:*
7.3.0 7.3.5
Fortinet Fortisiem
cpe:2.3:a:fortinet:fortisiem:7.4.0:*:*:*:*:*:*:*