Webmin
CVE-2021-31761
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
Webmin 1.973 is affected by reflected Cross Site Scripting (XSS) to achieve Remote Command Execution through Webmin's running process feature.
AnalysisAI
Webmin 1.973 is affected by reflected Cross Site Scripting (XSS) to achieve Remote Command Execution through Webmin's running process feature. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Technical ContextAI
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Webmin 1.973 is affected by reflected Cross Site Scripting (XSS) to achieve Remote Command Execution through Webmin's running process feature. Affected products include: Webmin.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
file/show.cgi in Webmin 1.590 and earlier allows remote authenticated users to execute arbitrary commands via an invalid
file/edit_html.cgi in Webmin 1.590 and earlier does not perform an authorization check before showing a file's unedited
software/apt-lib.pl in Webmin before 1.997 lacks HTML escaping for a UI command. Rated critical severity (CVSS 9.8), thi
An issue was discovered in Webmin <=1.920. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitabl
Improper Access Control to Remote Code Execution in GitHub repository webmin/webmin prior to 1.990. Rated high severity
In Webmin through 1.910, any user authorized to the "Package Updates" module can execute arbitrary commands with root pr
SSRF exists in Webmin 1.850 via the PATH_INFO to tunnel/link.cgi, as demonstrated by a GET request for tunnel/link.cgi/h
Webmin 1.900 allows remote attackers to execute arbitrary code by leveraging the "Java file manager" and "Upload and Dow
CSRF exists in Webmin 1.850. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authenticati
Webmin through 1.991, when the Authentic theme is used, allows remote code execution when a user has been manually creat
Webmin 1.973 is affected by Cross Site Request Forgery (CSRF) to create a privileged user through Webmin's add users fea
Webmin 1.973 is affected by Cross Site Request Forgery (CSRF) to achieve Remote Command Execution (RCE) through Webmin's
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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