CVE-2020-13641 Explained : Impact and Mitigation

An issue was discovered in the Real-Time Find and Replace plugin before 4.0.2 for WordPress. The far_options_page function did not perform nonce verification, allowing for forged requests on behalf of an administrator. This could lead to the update of find and replace rules with malicious JavaScript, enabling later execution in the victim's browser.

Understanding CVE-2020-13641

This CVE identifies a vulnerability in the Real-Time Find and Replace plugin for WordPress.

What is CVE-2020-13641?

This CVE pertains to a security flaw in the Real-Time Find and Replace plugin that could be exploited to execute malicious JavaScript in a victim's browser.

The Impact of CVE-2020-13641

The vulnerability has a CVSS base score of 8.8, indicating a high severity level with significant impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2020-13641

The following technical details outline the specifics of this CVE.

Vulnerability Description

The far_options_page function in the Real-Time Find and Replace plugin lacked nonce verification, enabling unauthorized requests on behalf of an administrator.

Affected Systems and Versions

Product: Real-Time Find and Replace plugin
Vendor: N/A
Versions affected: <4.0.2

Exploitation Mechanism

The vulnerability allows attackers to update find and replace rules with malicious JavaScript, which can later be executed in the victim's browser.

Mitigation and Prevention

Protect your systems from CVE-2020-13641 with the following measures.

Immediate Steps to Take

Update the Real-Time Find and Replace plugin to version 4.0.2 or higher.
Monitor for any suspicious activities on the affected plugin.

Long-Term Security Practices

Implement regular security audits and code reviews for WordPress plugins.
Educate users on safe plugin installation and usage practices.

Patching and Updates

Stay informed about security patches and updates for all installed plugins.