PT-2020-20304 · Webmin · Webmin

Mauro Caseres · Published 2020-10-12 · Updated 2021-07-21 · CVE-2020-8821

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Webmin versions 1.941 and earlier

Description The issue is related to improper data validation in the Command Shell Endpoint, allowing a user to enter HTML code into the Command field. After submitting the code and visiting the Action Logs Menu to display logs, the HTML code is rendered, although JavaScript is not executed. The changes persist across different users.

Recommendations For Webmin versions 1.941 and earlier, update to a version later than 1.941 to resolve the issue. At the moment, there is no information about other specific fixes for this vulnerability.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-8821

MGASA-2020-0400

Affected Products

Webmin

References · 7

• https://osv.dev/vulnerability/MGASA-2020-0400 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2020-0400.html · Security Note
• https://webmin.com/security.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-8821 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8821 · Security Note
• https://webmin.com/changes.html · Note
• https://bugs.mageia.org/show_bug.cgi?id=27459 · Note