Directory traversal vulnerability in editaction.cgi of Webmin Directory 0.91 allows attackers to gain privileges via a '..' (dot dot) in the argument.

miniserv.pl in (1) Webmin before 1.070 and (2) Usermin before 1.000 does not properly handle metacharacters such as line feeds and carriage returns (CRLF) in Base-64 encoded strings during Basic authentication, which allows remote attackers to spoof a session ID and gain root privileges.

Unknown vulnerability in (1) Webmin and (2) Usermin before 1.200 causes Webmin to change permissions and ownership of configuration files, with unknown impact.

The Printer Administration module for Webmin 0.990 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in the printer name.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Webmin. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of CGI requests. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Webmin. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of CGI requests. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Webmin. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of CGI requests. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.

Usermin 0.980 through 1.x before 1.660 allows uconfigsave.cgi sigfilefree remote code execution because it uses the two argument (not three argument) form of Perl open.

An issue was discovered in Webmin <=1.920. The parameter old in passwordchange.cgi contains a command injection vulnerability.

miniserv.pl in Webmin 1.962 on Windows mishandles special characters in query arguments to the CGI program.

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/savelog.cgi?view=1&file=/etc/shadow" request.

software/apt-lib.pl in Webmin before 1.997 lacks HTML escaping for a UI command.

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

A Cross-Site Scripting (XSS) vulnerability exists in Webmin 1.973 via the Scheduled Cron Jobs feature.

Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi.

The RPC module in Webmin 0.21 through 0.99, when installed without root or admin privileges, allows remote attackers to read and write to arbitrary files and execute arbitrary commands via remoteforeignrequire and remoteforeigncall requests.

The Webmin HTTP server (miniserv.pl) allows unauthenticated attackers to impersonate any user with a configured SSL client certificate by sending a forged HTTP header. A remote attacker can spoof certificate DNs and authenticate as any user. Fixed in 2.202.

Arbitrary command execution can occur in Webmin through 1.962. Any user authorized for the Package Updates module can execute arbitrary commands with root privileges via vectors involving %0A and %0C. NOTE: this issue exists because of an incomplete fix for CVE-2019-12840.

Unspecified vulnerability in Webmin before 1.370 on Windows allows remote authenticated users to execute arbitrary commands via a crafted URL.

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.

Improper Access Control to Remote Code Execution in GitHub repository webmin/webmin prior to 1.990.

Improper handling of insufficient permissions or privileges vulnerability exists in ajaxterm module of Webmin prior to 2.003. If this vulnerability is exploited, a console session may be hijacked by an unauthorized user. As a result, data within a system may be referred, a webpage may be altered, or a server may be permanently halted.

Webmin 1.973 is affected by Cross Site Request Forgery (CSRF) to achieve Remote Command Execution (RCE) through Webmin's running process feature.

rpc.cgi in Webmin through 1.920 allows authenticated Remote Code Execution via a crafted object name because unserialisevariable makes an eval call. NOTE: the WebminServersIndex 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."

CSRF exists in Webmin 1.850. By sending a GET request to at/createjob.cgi containing dir=/&cmd= in the URI, an attacker to execute arbitrary commands.

Webmin 1.973 is affected by Cross Site Request Forgery (CSRF) to create a privileged user through Webmin's add users feature, and then get a reverse shell through Webmin's running process feature.

A Cross-site request forgery (CSRF) vulnerability exists in Webmin 1.973 via the Upload and Download feature.

A Cross-site request forgery (CSRF) vulnerability exists in Webmin 1.973 through the File Manager feature.

A cross-site request forgery (CSRF) vulnerability exists in Webmin 1.973 via the Scheduled Cron Jobs feature.

Webmin through 1.991, when the Authentic theme is used, allows remote code execution when a user has been manually created (i.e., not created in Virtualmin or Cloudmin). This occurs because settings-editorwrite.cgi does not properly restrict the file parameter.