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Fortinet FortiManager Arbitrary file write and delete in JSON API (FG-IR-26-190)

high Nessus Plugin ID 378659

Synopsis

Fortinet Firewall is missing one or more security-related updates.

Description

The version of FortiManager installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-26-190 advisory.

 - An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiAnalyzer 7.6.0 through 7.6.4, FortiAnalyzer 7.4.0 through 7.4.7, FortiAnalyzer 7.2.0 through 7.2.11, FortiManager 7.6.0 through 7.6.4, FortiManager 7.4.0 through 7.4.7, FortiManager 7.2.0 through 7.2.11, FortiManager Cloud 7.6.0 through 7.6.4, FortiManager Cloud 7.4.1 through 7.4.7, FortiManager Cloud 7.2.1 through 7.2.10 may allow an authenticated attacker whose profile only has read permission to write and delete files from the underlying filesystem via crafted HTTP or HTTPs requests. (CVE-2025-61625)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

For 7.2.x, upgrade to FortiManager version 7.2.12 or later. For 7.4.x, upgrade to FortiManager version 7.4.8 or later.
For 7.6.x, upgrade to FortiManager version 7.6.5 or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-26-190

Plugin Details

Severity: High

ID: 378659

File Name: fortimanager_FG-IR-26-190.nasl

Version: 1.1

Type: Local

Family: Firewalls

Published: 11/11/2026

Updated: 11/11/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.5

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:C/A:C

CVSS Score Source: CVE-2025-61625

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:fortinet:fortimanager

Required KB Items: Host/Fortigate/model, Host/Fortigate/version

Exploit Ease: No known exploits are available

Patch Publication Date: 11/10/2026

Vulnerability Publication Date: 11/10/2026

Reference Information

CVE: CVE-2025-61625