What is CVE-2023-41159?

CVE-2023-41159 is a medium-severity vulnerability in Webmin Usermin, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-09-14.

How severe is CVE-2023-41159?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Webmin Usermin

CVE-2023-41159

A Stored Cross-Site Scripting (XSS) vulnerability while editing the autoreply file page in Usermin 2.000 allows remote attackers to inject arbitrary web script or HTML by editing the forward file manually.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-09-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001

Affected products

Webmin Usermin — versions 2.000

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

webmin.com/tags/webmin-changelog/ (Release Notes)
github.com/shindeanik/Usermin-2.000/blob/main/CVE-2023-41159 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-41159?: CVE-2023-41159 is a medium-severity vulnerability in Webmin Usermin, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-09-14.
How severe is CVE-2023-41159?: Medium severity. CVSS v3 base score is 5.4 out of 10.