CVE-2020-8821 - CVE House
Back to Database
Status published Medium CVE-2020-8821

An Improper Data Validation Vulnerability exists in Webmin 1.941 and...

Vulnerability Description

An Improper Data Validation Vulnerability exists in Webmin 1.941 and earlier affecting the Command Shell Endpoint. A user may enter HTML code into the Command field and submit it. Then, after visiting the Action Logs Menu and displaying logs, the HTML code will be rendered (however, JavaScript is not executed). Changes are kept across users.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-8821

Credits & Attribution

No credits recorded in the NVD database.

References

More from webmin

View All →
CVE-2022-36880
The Read Mail module in Webmin 1.995 and Usermin through...
Medium 6.1
CVE-2022-36446
software/apt-lib.pl in Webmin before 1.997 lacks HTML escaping for a...
Critical 9.8
CVE-2022-35132
Usermin through 1.850 allows a remote authenticated user to execute...
Unknown 0
CVE-2022-30708
Webmin through 1.991, when the Authentic theme is used, allows...
High 8.8
CVE-2022-0829
Improper Authorization in webmin/webmin
Medium 5.4

Affected Vendor

Affected Software

webmin
Vulnerable Versions:
0

Timeline

Official Publish: October 12th, 2020
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.