CVE-2021-43062

MEDIUM NUCLEI

FortiMail 6.2.0-6.2.7, 6.4.0-6.4.5, 6.3.0-6.3.7, 7.0.0-7.0.1 - XSS via FortiGuard URI Protection

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-43062. PoCs published by Braiant Giraldo Villa. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit demonstrates a reflected XSS vulnerability in FortiMail versions 7.0.1 and below, 6.4.5 and below, and 6.2.7 and below. The vulnerability allows an unauthenticated attacker to execute arbitrary JavaScript via a crafted HTTP GET request to the FortiGuard URI protection service.

Description

A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiMail version 7.0.1 and 7.0.0, version 6.4.5 and below, version 6.3.7 and below, version 6.0.11 and below allows attacker to execute unauthorized code or commands via crafted HTTP GET requests to the FortiGuard URI protection service.

Exploits (1)

exploitdb WORKING POC
by Braiant Giraldo Villa · textwebappsmultiple
https://www.exploit-db.com/exploits/50759

This exploit demonstrates a reflected XSS vulnerability in FortiMail versions 7.0.1 and below, 6.4.5 and below, and 6.2.7 and below. The vulnerability allows an unauthenticated attacker to execute arbitrary JavaScript via a crafted HTTP GET request to the FortiGuard URI protection service.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: FortiMail versions 7.0.1 and below, 6.4.5 and below, 6.2.7 and below
No auth needed
Prerequisites: Access to the target FortiMail instance
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Nuclei Templates (1)

Fortinet FortiMail 7.0.1 - Cross-Site Scripting
MEDIUMby ajaysenr
Shodan: http.title:"fortimail"
FOFA: title="fortimail" || fortimail && port=443

References (2)

Core 2
Core References
Vendor Advisory x_refsource_confirm
https://fortiguard.com/advisory/FG-IR-21-185

Scores

CVSS v3 6.1
EPSS 0.1294
EPSS Percentile 95.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
fortinet/fortimail 6.2.0 - 6.2.8
Published Feb 02, 2022
Tracked Since Feb 18, 2026