CVE-2020-4041 Explained : Impact and Mitigation
Learn about CVE-2020-4041, a vulnerability in Bolt CMS allowing malicious code injection in file names pre-upload. Find mitigation steps and update recommendations here.
In Bolt CMS before version 3.7.1, the filename of uploaded files was vulnerable to stored XSS, allowing for potential injection of malicious payloads.
Understanding CVE-2020-4041
What is CVE-2020-4041?
CVE-2020-4041 is a vulnerability in Bolt CMS that existed before version 3.7.1, enabling attackers to inject malicious code into file names post-upload.
The Impact of CVE-2020-4041
The vulnerability had a CVSS base score of 7.4, indicating a high severity issue with the potential for integrity impact.
Technical Details of CVE-2020-4041
Vulnerability Description
- Stored XSS vulnerability in Bolt CMS file upload functionality
Affected Systems and Versions
- Product: Bolt
- Vendor: Bolt
- Versions Affected: < 3.7.1
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: Required
Mitigation and Prevention
Immediate Steps to Take
- Upgrade Bolt CMS to version 3.7.1 or higher
- Avoid renaming files to disallowed extensions
Long-Term Security Practices
- Regularly update CMS and plugins
- Implement input validation and output encoding
Patching and Updates
- Apply security patches promptly to mitigate vulnerabilities