CVE-2026-59838 PUBLISHED

Assigner: fortinet
Reserved: 07.07.2026 Published: 15.07.2026 Updated: 15.07.2026

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>

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C
CVSS Score: 5.3

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	High	Integrity Impact	Low
User Interaction	Required	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	Fortinet
Product	FortiSIEM
Versions	Default: unaffected Version 7.4.0 is affected affected from 7.3.0 to 7.3.4 (incl.) affected from 7.2.0 to 7.2.6 (incl.) affected from 7.1.0 to 7.1.9 (incl.) affected from 7.0.0 to 7.0.4 (incl.) affected from 6.7.0 to 6.7.10 (incl.) affected from 6.6.0 to 6.6.5 (incl.) affected from 6.5.0 to 6.5.3 (incl.) affected from 6.4.0 to 6.4.4 (incl.) affected from 6.3.0 to 6.3.3 (incl.) affected from 6.2.0 to 6.2.1 (incl.)

Solutions

Upgrade to FortiSIEM version 7.5.0 or above Upgrade to FortiSIEM version 7.4.1 or above Upgrade to FortiSIEM version 7.3.5 or above Upgrade to FortiSIEM version 7.2.7 or above

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-149

Problem Types

Execute unauthorized code or commands CWE