CVE-2021-24470 : What You Need to Know

Yada Wiki WordPress plugin before version 3.4.1 is prone to a Stored Cross-Site Scripting vulnerability, allowing attackers to execute malicious scripts.

Understanding CVE-2021-24470

This CVE affects Yada Wiki WordPress plugin versions prior to 3.4.1, leading to a Stored Cross-Site Scripting issue.

What is CVE-2021-24470?

The Yada Wiki WordPress plugin before 3.4.1 fails to properly sanitize, validate, or escape the anchor attribute of its shortcode, enabling threat actors to inject and store malicious scripts.

The Impact of CVE-2021-24470

Exploitation of this vulnerability could result in unauthorized script execution in the context of a user viewing the affected page, potentially leading to account compromise and further attacks.

Technical Details of CVE-2021-24470

The technical details of this CVE include:

Vulnerability Description

The vulnerability arises from the plugin's failure to sanitize the anchor attribute of its shortcode, allowing for Stored Cross-Site Scripting attacks.

Affected Systems and Versions

Yada Wiki versions less than 3.4.1 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the anchor attribute of the plugin's shortcode, which get stored and executed in the user's browser.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-24470, consider the following steps:

Immediate Steps to Take

Update Yada Wiki plugin to version 3.4.1 or higher to patch the vulnerability.
Regularly scan your website for any signs of unauthorized access or malicious activity.

Long-Term Security Practices

Implement web application firewalls to filter out malicious traffic.
Educate users on practicing safe browsing habits to reduce the likelihood of successful attacks.

Patching and Updates

Stay informed about security updates and patches released by the plugin vendor to address known vulnerabilities and enhance the overall security posture of your website.