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Vulnerability record · CVE-2021-31761 · published 25 April 2021

CVE-2021-31761: Webmin cross-site scripting vulnerability

Webmin · Webmin

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

9.6 CVSS 3.1 Critical EPSS 34% · top 1.7% CWE-79 · Cross-site scripting
9.6CVSS 3.1 base score, v2 6.8
34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 8 tagged exploit
17 Jun 2026Last modified by NVD

Description

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

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/163559/Webmin-1.973-Cross-Site-Request-Forgery.html ExploitThird Party AdvisoryVDB Entry
https://github.com/Mesh3l911/CVE-2021-31761 ExploitThird Party Advisory
https://github.com/electronicbots/CVE-2021-31761 ExploitThird Party Advisory
https://github.com/webmin/webmin ProductThird Party Advisory
https://youtu.be/23VvUMu-28c ExploitThird Party Advisory
http://packetstormsecurity.com/files/163559/Webmin-1.973-Cross-Site-Request-Forgery.html ExploitThird Party AdvisoryVDB Entry
https://github.com/Mesh3l911/CVE-2021-31761 ExploitThird Party Advisory
https://github.com/electronicbots/CVE-2021-31761 ExploitThird Party Advisory
https://github.com/webmin/webmin ProductThird Party Advisory
https://youtu.be/23VvUMu-28c ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-31761), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.