CVE-2021-26102

CRITICAL

Fortinet Fortiwan < 4.5.8 - Path Traversal

Title source: rule

Description

A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value.

Exploits (1)

nomisec WORKING POC 8 stars

by SleepyCofe · poc

https://github.com/SleepyCofe/CVE-2021-26102

View Code ZIP pw:eip

References (1)

[Vendor Advisory] https://fortiguard.fortinet.com/psirt/FG-IR-21-048

Scores

CVSS v3 9.8

EPSS 0.6081

EPSS Percentile 98.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-22 CWE-305

Status published

Products (1)

fortinet/fortiwan 4.4.0 - 4.5.8

Published Dec 19, 2024

Tracked Since Feb 18, 2026