CVE-2021-24269 : Exploit Details and Defense Strategies

WordPress Plugin 'Sina Extension for Elementor' before 3.3.12 is vulnerable to stored Cross-Site Scripting (XSS) by lower-privileged users, potentially allowing contributors to exploit the system.

Understanding CVE-2021-24269

This CVE identifies a stored XSS vulnerability in the 'Sina Extension for Elementor' WordPress Plugin, impacting versions prior to 3.3.12.

What is CVE-2021-24269?

The 'Sina Extension for Elementor' WordPress Plugin before version 3.3.12 contains multiple widgets that are susceptible to stored XSS attacks by lower-privileged users like contributors.

The Impact of CVE-2021-24269

The vulnerability could be exploited by attackers with contributor access to inject malicious scripts into the system, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2021-24269

This section provides a closer look at the vulnerability's technical aspects.

Vulnerability Description

The stored XSS flaw in the 'Sina Extension for Elementor' Plugin allows contributors to insert malicious scripts into widgets, posing a risk to website security.

Affected Systems and Versions

Versions of the plugin prior to 3.3.12 are affected by this vulnerability, potentially impacting WordPress sites that utilize this specific extension.

Exploitation Mechanism

Lower-privileged users with contributor access can leverage this vulnerability to execute XSS attacks by injecting harmful scripts via certain widgets.

Mitigation and Prevention

Protecting your system from CVE-2021-24269 involves immediate actions and long-term security practices.

Immediate Steps to Take

Update the 'Sina Extension for Elementor' Plugin to version 3.3.12 or higher to patch the vulnerability.
Monitor user permissions and restrict contributor access to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update all plugins, themes, and WordPress core to maintain a secure environment.
Conduct security audits and scans to detect any vulnerabilities proactively.

Patching and Updates

Stay informed about security patches and updates for the 'Sina Extension for Elementor' Plugin to prevent future exploitation.