CVE-2026-126220

Improper Neutralization of Special Elements Allowing Arbitrary File Access and Code Execution in FortiManager GUI

Published Nov 11, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed

Description

A improper neutralization of special elements in output used by a downstream component ('injection') vulnerability in Fortinet FortiManager 8.0.0, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11 may allow an authenticated administrator to read or write arbitrary files or execute unauthorized code or commands via specially crafted requests to the GUI.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Fortinet

FortiManager

unaffected

Version	Status	Constraints
`8.0.0`	affected	—
`7.6.0`	affected	≤ 7.6.7
`7.4.0`	affected	≤ 7.4.11

No data.

Vendor Product Versions

Fortinet

Fortimanager

Version	Status	Scheme	Platform
`8.0.0`	affected	semver	—
`[7.6.0,7.6.7]`	affected	semver	—
`[7.4.0,7.4.11]`	affected	semver	—

Remediation

Vendor Solution

Upgrade to FortiManager version 8.0.1 or above Upgrade to FortiManager version 7.6.8 or above Upgrade to FortiManager version 7.4.12 or above

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.370% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://fortiguard.fortinet.com/psirt/FG-IR-26-236

History

Nov 12, 2026 4:45 PM Title updated View changes

Type	Values Removed	Values Added
Title		Improper Neutralization of Special Elements Allowing Arbitrary File Access and Code Execution in FortiManager GUI

Nov 11, 2026 9:45 PM Description updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A improper neutralization of special elements in output used by a downstream component ('injection') vulnerability in Fortinet FortiManager 8.0.0, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11 may allow an authenticated administrator to read or write arbitrary files or execute unauthorized code or commands via specially crafted requests to the GUI.
First Time appeared		Fortinet Fortinet fortimanager
Weaknesses		CWE-74
CPEs		cpe:2.3:o:fortinet:fortimanager:7.4.0:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.10:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.11:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.1:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.2:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.3:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.4:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.5:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.6:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.7:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.8:::::::* cpe:2.3:o:fortinet:fortimanager:7.4.9:::::::* cpe:2.3:o:fortinet:fortimanager:7.6.0:::::::* cpe:2.3:o:fortinet:fortimanager:7.6.1:::::::* cpe:2.3:o:fortinet:fortimanager:7.6.2:::::::* cpe:2.3:o:fortinet:fortimanager:7.6.3:::::::* cpe:2.3:o:fortinet:fortimanager:7.6.4:::::::* cpe:2.3:o:fortinet:fortimanager:7.6.5:::::::* cpe:2.3:o:fortinet:fortimanager:7.6.6:::::::* cpe:2.3:o:fortinet:fortimanager:7.6.7:::::::* cpe:2.3:o:fortinet:fortimanager:8.0.0:::::::*
Vendors & Products		Fortinet Fortinet fortimanager
References		https://fortiguard.fortinet.com/psirt/FG-IR-26-236
Metrics		cvssV3_1 `{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C'}`