CVE-2021-40959

Name: CVE-2021-40959
Creator: NVD / NIST
Published: 2024-12-20T22:15:24.34+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2021-40959 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A reflected cross-site scripting vulnerability in MONITORAPP Application Insight Web Application Firewall (AIWAF) <= 4.1.6 and <=5.0 was identified on the subpage `/process_management/process_status.xhr.php`. This vulnerability allows an attacker to inject malicious scripts that execute in the context of the victim's session.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

A reflected cross-site scripting vulnerability in MONITORAPP Application Insight Web Application Firewall (AIWAF) <= 4.1.6 and <=5.0 was identified on the subpage `/process_management/process_status.xhr.php`. This vulnerability allows an attacker to inject malicious scripts that execute in the context of the victim's session.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.23%

13.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

References

https://rubiya.kr/CVE-2021-40959/

Timeline

Published: Dec 20, 2024
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2021-40959?

How severe is CVE-2021-40959?

CVE-2021-40959 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40959?

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-2021-40959?

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

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Source: NVD / NIST