CVE-2020-21005 : What You Need to Know
Learn about CVE-2020-21005, a vulnerability in WellCMS 2.0 beta3 allowing unauthorized file uploads. Find mitigation steps and long-term security practices here.
WellCMS 2.0 beta3 is vulnerable to File Upload, allowing users to upload malicious files to obtain unauthorized access.
Understanding CVE-2020-21005
WellCMS 2.0 beta3 allows users to upload files with controllable types, potentially leading to the execution of malicious code.
What is CVE-2020-21005?
WellCMS 2.0 beta3 is susceptible to a File Upload vulnerability, enabling users to manipulate file types during upload to gain unauthorized access.
The Impact of CVE-2020-21005
This vulnerability allows attackers to upload files with malicious content, potentially leading to the compromise of the CMS and the server.
Technical Details of CVE-2020-21005
WellCMS 2.0 beta3 vulnerability details.
Vulnerability Description
Users can exploit the File Upload vulnerability in WellCMS 2.0 beta3 by uploading files with controllable types, potentially resulting in the execution of malicious code.
Affected Systems and Versions
- Product: WellCMS 2.0 beta3
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
Attackers can log in to the CMS background and upload a picture with a modified file type to gain unauthorized access or execute malicious actions.
Mitigation and Prevention
Protect your system from CVE-2020-21005.
Immediate Steps to Take
- Disable file uploads until a patch is available.
- Monitor CMS for any unauthorized file uploads.
Long-Term Security Practices
- Implement file type validation for uploads.
- Regularly update and patch the CMS to address security vulnerabilities.
Patching and Updates
Apply patches and updates provided by WellCMS to fix the File Upload vulnerability.