Fortinet PSIRT AdvisoriesFG-IR-26-149

Cross-Site Scripting in Domain parameter

CVSSv3 Score: 5.3 An Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability [CWE-80] in FortiSIEM may allow a privileged administrator to execute unauthorized commands via crafted requests. Revised on 2026-07-14 00:00:00

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5.3CVSS out of 10Medium severity

Scope

What the vendor says is affected

FortiSIEM

Timeline

When this advisory changed

Jul 14, 2026 at 7:00 AM UTC
Published by Fortinet
The publication date reported by the vendor.
Aug 20, 2026 at 2:50 AM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Sep 13, 2026 at 5:10 AM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Source

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Vendor: Fortinet
Advisory ID: FG-IR-26-149
Last source check: Sep 13, 2026 at 5:10 AM UTC

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What the vendor says is affected

When this advisory changed

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