CVE-2021-24239 Scanner

Vulnerability Overview:

CVE Identifier: CVE-2021-24239
Affected Plugin: WordPress Pie Register
Affected Versions: <3.7.0.1
Severity: Medium
Impact: This vulnerability allows attackers to execute arbitrary scripts in the context of the victim's browser, leading to potential information theft or unauthorized actions.

Vulnerability Details:

CVE-2021-24239 highlights a significant security flaw within the Pie Register plugin where the invitaion_code GET parameter is improperly sanitized. This oversight enables attackers to embed malicious JavaScript code on the Activation Code page, which is executed when accessed by a user. The executed script could lead to the theft of authentication credentials or other sensitive data, further enabling attackers to perform actions on the site as the compromised user.

The exploitation of this vulnerability underscores the importance of input validation and output encoding in web applications, particularly in plugins widely used across numerous sites.

The Importance of Mitigating CVE-2021-24239:

Mitigating CVE-2021-24239 is crucial for WordPress site administrators who utilize the Pie Register plugin. Without appropriate action, sites are at risk of unauthorized access and manipulation, which can tarnish the site's integrity and trustworthiness. Moreover, addressing this vulnerability is essential for maintaining compliance with data protection regulations and ensuring the privacy and security of user data.

Why S4E?

S4E's CVE-2021-24239 Scanner offers a streamlined solution for identifying and rectifying the XSS vulnerability in affected WordPress installations. By utilizing our comprehensive scanning tool, administrators can receive precise insights into their site's security posture, along with tailored recommendations for enhancing protection against XSS attacks.

References

• https://wpscan.com/vulnerability/f1b67f40-642f-451e-a67a-b7487918ee34 
• https://plugins.trac.wordpress.org/changeset/2507536/