CVE-2023-43309

Name: CVE-2023-43309
Creator: NVD / NIST
Published: 2023-09-21T14:15:10.75+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2023-43309 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. There is a stored cross-site scripting (XSS) vulnerability in Webmin 2.002 and below via the Cluster Cron Job tab Input field, which allows attackers to run malicious scripts by injecting a specially crafted payload.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

There is a stored cross-site scripting (XSS) vulnerability in Webmin 2.002 and below via the Cluster Cron Job tab Input field, which allows attackers to run malicious scripts by injecting a specially crafted payload.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.40%

31.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Webmin	Webmin	<= 2.002

References

https://github.com/TishaManandhar/Webmin_xss_POC/blob/main/XSSExploit, Third Party Advisory
https://github.com/TishaManandhar/Webmin_xss_POC/blob/main/XSSExploit, Third Party Advisory

Timeline

Published: Sep 21, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-43309?

How severe is CVE-2023-43309?

CVE-2023-43309 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2023-43309?

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-2023-43309?

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

Scan your code now

Source: NVD / NIST