Webmin: Security Vulnerabilities
XSS exists in Webmin 1.941 and earlier affecting the Save function of the Read User Email Module / mailboxes Endpoint when attempting to save HTML emails. This module parses any output without sanitizing SCRIPT elements, as opposed to the View function, which sanitizes the input correctly. A malicious user can send any JavaScript payload into the message body and execute it if the user decides to save that email.
CVSS Score
6.1
EPSS Score
0.004
Published
2020-10-12
An XSS Vulnerability exists in Webmin 1.941 and earlier affecting the Cluster Shell Commands Endpoint. A user may enter any XSS Payload into the Command field and execute it. Then, after revisiting the Cluster Shell Commands Menu, the XSS Payload will be rendered and executed.
CVSS Score
5.4
EPSS Score
0.003
Published
2020-10-12
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.
CVSS Score
5.4
EPSS Score
0.025
Published
2020-10-12
xmlrpc.cgi in Webmin through 1.930 allows authenticated XXE attacks. By default, only root, admin, and sysadm can access xmlrpc.cgi.
CVSS Score
6.5
EPSS Score
0.009
Published
2019-08-26
rpc.cgi in Webmin through 1.920 allows authenticated Remote Code Execution via a crafted object name because unserialise_variable makes an eval call. NOTE: the Webmin_Servers_Index documentation states "RPC can be used to run any command or modify any file on a server, which is why access to it must not be granted to un-trusted Webmin users."
CVSS Score
8.8
EPSS Score
0.92
Published
2019-08-26
CVE-2019-15107
An issue was discovered in Webmin <=1.920. The parameter old in password_change.cgi contains a command injection vulnerability.
Known exploited
CVSS Score
9.8
EPSS Score
0.945
Published
2019-08-16
In Webmin through 1.910, any user authorized to the "Package Updates" module can execute arbitrary commands with root privileges via the data parameter to update.cgi.
CVSS Score
8.8
EPSS Score
0.883
Published
2019-06-15
Webmin 1.890 has XSS via /config.cgi?webmin, the /shell/index.cgi history parameter, /shell/index.cgi?stripped=1, or the /webminlog/search.cgi uall or mall parameter.
CVSS Score
5.4
EPSS Score
0.016
Published
2019-03-21
Webmin 1.900 allows remote attackers to execute arbitrary code by leveraging the "Java file manager" and "Upload and Download" privileges to upload a crafted .cgi file via the /updown/upload.cgi URI.
CVSS Score
7.8
EPSS Score
0.517
Published
2019-03-07
An issue was discovered in Webmin 1.840 and 1.880 when the default Yes setting of "Can view any file as a log file" is enabled. As a result of weak default configuration settings, limited users have full access rights to the underlying Unix system files, allowing the user to read sensitive data from the local system (using Local File Include) such as the '/etc/shadow' file via a "GET /syslog/save_log.cgi?view=1&file=/etc/shadow" request.
CVSS Score
9.8
EPSS Score
0.008
Published
2018-03-14