CVE-2023-40986

Name: CVE-2023-40986
Creator: NVD / NIST
Published: 2023-09-15T01:15:07.91+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2023-40986 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A stored cross-site scripting (XSS) vulnerability in the Usermin Configuration function of Webmin v2.100 allows attackers to execute arbitrary web sripts or HTML via a crafted payload injected into the Custom field.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

A stored cross-site scripting (XSS) vulnerability in the Usermin Configuration function of Webmin v2.100 allows attackers to execute arbitrary web sripts or HTML via a crafted payload injected into the Custom field.

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

0.41%

33.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Webmin	Webmin	2.100

References

http://webmin.comProduct
https://github.com/Vi39/Webmin-2.100/blob/main/CVE-2023-40986Exploit, Third Party Advisory
http://webmin.comProduct
https://github.com/Vi39/Webmin-2.100/blob/main/CVE-2023-40986Exploit, Third Party Advisory

Timeline

Published: Sep 15, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-40986?

How severe is CVE-2023-40986?

CVE-2023-40986 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2023-40986?

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-2023-40986?

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

Scan your code now

Source: NVD / NIST