CVE-2020-12670 : What You Need to Know
Learn about CVE-2020-12670 affecting Webmin 1.941 and earlier versions. Understand the XSS vulnerability in the Save function of the Read User Email Module and how to mitigate the risks.
Webmin 1.941 and earlier versions are susceptible to XSS attacks in the Save function of the Read User Email Module. This vulnerability allows malicious users to execute JavaScript payloads when saving HTML emails.
Understanding CVE-2020-12670
Webmin versions 1.941 and earlier are affected by a cross-site scripting (XSS) vulnerability that impacts the Save function of the Read User Email Module.
What is CVE-2020-12670?
XSS exists in Webmin 1.941 and earlier, affecting the Save function of the Read User Email Module when attempting to save HTML emails. Malicious users can inject JavaScript payloads into email messages.
The Impact of CVE-2020-12670
- Allows malicious users to execute arbitrary JavaScript code
- Exploitation can lead to unauthorized access or data theft
Technical Details of CVE-2020-12670
Webmin 1.941 and earlier versions are vulnerable to XSS attacks in the Save function of the Read User Email Module.
Vulnerability Description
- XSS vulnerability in Webmin 1.941 and earlier
- Save function of the Read User Email Module affected
Affected Systems and Versions
- Webmin versions 1.941 and earlier
Exploitation Mechanism
- Malicious users can inject JavaScript payloads into email messages
- Execution of JavaScript code upon saving the email
Mitigation and Prevention
Webmin users should take immediate steps to mitigate the risks posed by CVE-2020-12670.
Immediate Steps to Take
- Update Webmin to the latest version
- Avoid saving HTML emails with untrusted content
- Implement input sanitization to prevent XSS attacks
Long-Term Security Practices
- Regularly monitor for security updates and patches
- Educate users on safe email practices and potential risks
Patching and Updates
- Apply patches provided by Webmin promptly to address the XSS vulnerability