CVE-2021-24274 : Exploit Details and Defense Strategies

The Ultimate Maps by Supsystic WordPress plugin before version 1.2.5 is impacted by a reflected Cross-Site Scripting (XSS) vulnerability due to insufficient sanitization of the tab parameter in its options page. This vulnerability can expose users to malicious scripts injected by attackers.

Understanding CVE-2021-24274

This section delves into the details of the CVE-2021-24274 vulnerability.

What is CVE-2021-24274?

The vulnerability in Ultimate Maps by Supsystic WordPress plugin before 1.2.5 arises from inadequate validation of the tab parameter, enabling attackers to execute malicious scripts in the context of a user's browser.

The Impact of CVE-2021-24274

The reflected XSS issue can be exploited by cybercriminals to launch various attacks, including stealing sensitive data, session hijacking, and spreading malware to visitors of the affected website.

Technical Details of CVE-2021-24274

This section provides a deeper insight into the technical aspects of the CVE-2021-24274 vulnerability.

Vulnerability Description

The vulnerability stems from the plugin's failure to properly sanitize user-supplied data, leading to the execution of arbitrary JavaScript code in the victim's browser.

Affected Systems and Versions

Ultimate Maps by Supsystic plugin versions earlier than 1.2.5 are vulnerable to this XSS flaw, putting websites at risk of exploitation.

Exploitation Mechanism

By manipulating the tab parameter in the plugin's options page, malicious actors can craft URLs to execute unauthorized scripts when unsuspecting users interact with the compromised elements.

Mitigation and Prevention

Protecting your systems from CVE-2021-24274 requires immediate action and long-term security measures.

Immediate Steps to Take

Update the Ultimate Maps by Supsystic plugin to version 1.2.5 or above to eliminate the vulnerability.
Regularly scan your website for any signs of malicious activity or unauthorized access.

Long-Term Security Practices

Educate your team about common security threats like XSS and encourage safe coding practices.
Implement security headers and content security policies to mitigate XSS risks.

Patching and Updates

Stay vigilant for security updates and patches released by plugin vendors and ensure timely installation to safeguard your website against emerging threats.