CVE-2020-7936 Explained : Impact and Mitigation

Plone 4.0 through 5.2.1 is affected by an open redirect vulnerability that allows attackers to redirect users to malicious sites.

Understanding CVE-2020-7936

An open redirect vulnerability in Plone versions 4.0 through 5.2.1 enables attackers to craft malicious links that redirect users to unauthorized sites.

What is CVE-2020-7936?

This CVE describes an open redirect issue in the login form and potentially other areas of Plone, leading to unauthorized redirection to attacker-controlled websites.

The Impact of CVE-2020-7936

The vulnerability allows attackers to deceive users into visiting malicious sites, potentially leading to phishing attacks, malware distribution, or information theft.

Technical Details of CVE-2020-7936

Plone's open redirect vulnerability has the following technical aspects:

Vulnerability Description

An open redirect flaw in the login form and other sections of Plone versions 4.0 through 5.2.1

Affected Systems and Versions

Plone versions 4.0 through 5.2.1

Exploitation Mechanism

Attackers can create deceptive links that, when clicked, redirect users to malicious websites.

Mitigation and Prevention

Protect your systems from CVE-2020-7936 with these measures:

Immediate Steps to Take

Apply security patches provided by Plone promptly
Educate users about the risks of clicking on unknown links
Monitor and restrict external redirects within the application

Long-Term Security Practices

Regularly update and patch Plone installations
Implement URL validation mechanisms to prevent open redirect vulnerabilities

Patching and Updates

Stay informed about security updates from Plone
Apply patches and updates as soon as they are released