CVE-2021-42752

Name: CVE-2021-42752
Creator: NVD / NIST
Published: 2021-12-08T12:15:07.837+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2021-42752 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiWLM version 8.6.1 and below allows attacker to execute malicious javascript code on victim's host via crafted HTTP requests. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiWLM version 8.6.1 and below allows attacker to execute malicious javascript code on victim's host via crafted HTTP requests

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.52%

39.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Fortinet	Fortiwlm	<= 8.6.1

References

https://fortiguard.com/advisory/FG-IR-21-111Patch, Vendor Advisory
https://fortiguard.com/advisory/FG-IR-21-111Patch, Vendor Advisory

Timeline

Published: Dec 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42752?

How severe is CVE-2021-42752?

CVE-2021-42752 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42752?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-42752?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST