CVE-2021-31761

Name: CVE-2021-31761
Creator: NVD / NIST
Published: 2021-04-25T19:15:08.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.6/10EPSS 33.57%

Last modified Jun 17, 2026

CVE-2021-31761 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. Webmin 1.973 is affected by reflected Cross Site Scripting (XSS) to achieve Remote Command Execution through Webmin's running process feature.. EPSS estimates a 33.57% chance of exploitation in the next 30 days.

Description

Webmin 1.973 is affected by reflected Cross Site Scripting (XSS) to achieve Remote Command Execution through Webmin's running process feature.

Metrics

CVSS 3.1

9.6/10

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

EPSS Probability

33.57%

98.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Webmin	Webmin	1.973

References

http://packetstormsecurity.com/files/163559/Webmin-1.973-Cross-Site-Request-Forgery.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/Mesh3l911/CVE-2021-31761Exploit, Third Party Advisory
https://github.com/electronicbots/CVE-2021-31761Exploit, Third Party Advisory
https://github.com/webmin/webminProduct, Third Party Advisory
https://youtu.be/23VvUMu-28cExploit, Third Party Advisory
http://packetstormsecurity.com/files/163559/Webmin-1.973-Cross-Site-Request-Forgery.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/Mesh3l911/CVE-2021-31761Exploit, Third Party Advisory
https://github.com/electronicbots/CVE-2021-31761Exploit, Third Party Advisory
https://github.com/webmin/webminProduct, Third Party Advisory
https://youtu.be/23VvUMu-28cExploit, Third Party Advisory

Timeline

Published: Apr 25, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31761?

Webmin 1.973 is affected by reflected Cross Site Scripting (XSS) to achieve Remote Command Execution through Webmin's running process feature.

How severe is CVE-2021-31761?

CVE-2021-31761 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 33.57% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31761?

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-2021-31761?

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

Scan your code now

Source: NVD / NIST