CVE-2020-35945 : What You Need to Know

An issue was discovered in the Divi Builder plugin, Divi theme, and Divi Extra theme before 4.5.3 for WordPress. Authenticated attackers with contributor-level or above capabilities can upload arbitrary files, including .php files, due to a client-side file extension check.

Understanding CVE-2020-35945

This CVE identifies a critical vulnerability in the Divi Builder plugin and related themes for WordPress.

What is CVE-2020-35945?

The vulnerability allows authenticated attackers with specific capabilities to upload malicious files, posing a significant security risk to affected WordPress sites.

The Impact of CVE-2020-35945

The vulnerability has a CVSS base score of 9.9, indicating a critical severity level with high impacts on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2020-35945

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The issue allows attackers to bypass file extension checks on the client side, enabling the upload of arbitrary files, including potentially harmful .php files.

Affected Systems and Versions

Divi Builder plugin, Divi theme, and Divi Extra theme before version 4.5.3 for WordPress

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
Scope: Changed
User Interaction: None

Mitigation and Prevention

Protect your systems from CVE-2020-35945 by following these mitigation strategies.

Immediate Steps to Take

Update the Divi Builder plugin, Divi theme, and Divi Extra theme to version 4.5.3 or newer.
Monitor file uploads and restrict file types to prevent unauthorized uploads.

Long-Term Security Practices

Regularly review and update security configurations on WordPress sites.
Educate users on safe file uploading practices to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security patches and updates for WordPress plugins and themes to address known vulnerabilities.