FG-IR-26-091: XSS in LDAP server option

Published Mar 10, 2026
·
Updated

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiSandbox LDAP Server feature may allow an authenticated privileged attacker to execute code via crafted requests.

Affected Software

4 affected componentsFixes available
Fortinet FortiSandbox>=5.0.0<=5.0.2
Fortinet FortiSandbox>=4.4.0<=4.4.7
Fortinet FortiSandbox>=4.2
Fortinet FortiSandbox>=4.0

Event History

Mar 10, 2026
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of FG-IR-26-091?

The FG-IR-26-091 vulnerability is considered high severity due to its potential for Cross-site Scripting (XSS) which can lead to code execution.

2

How do I fix FG-IR-26-091?

To fix FG-IR-26-091, update your FortiSandbox to version 5.0.3 or later, or 4.4.8 or later, depending on your current version.

3

Who is affected by FG-IR-26-091?

The FG-IR-26-091 vulnerability affects FortiSandbox installations that are running versions from 4.0 to 5.0.2.

4

What type of attack can FG-IR-26-091 facilitate?

FG-IR-26-091 can facilitate Cross-site Scripting (XSS) attacks, allowing authenticated privileged attackers to execute unauthorized code.

5

Is FG-IR-26-091 present in all FortiSandbox versions?

No, FG-IR-26-091 is only present in specific vulnerable versions of FortiSandbox prior to the remediation updates.

Contact

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