CVE-2019-12826 Explained : Impact and Mitigation

The Widget Logic plugin for WordPress before version 5.10.2 is vulnerable to Cross-Site Request Forgery (CSRF) in the widget_logic.php file, allowing remote attackers to execute PHP code.

Understanding CVE-2019-12826

This CVE involves a security vulnerability in the Widget Logic plugin for WordPress that can be exploited by attackers to execute malicious PHP code remotely.

What is CVE-2019-12826?

This CVE identifies a Cross-Site Request Forgery (CSRF) vulnerability in the widget_logic.php file of the Widget Logic plugin for WordPress. Attackers can leverage this vulnerability to execute PHP code by creating and attaching malicious snippets to widgets.

The Impact of CVE-2019-12826

The vulnerability enables attackers to remotely execute PHP code by manipulating widgets with malicious code snippets, potentially leading to unauthorized access and control of the WordPress site.

Technical Details of CVE-2019-12826

The technical aspects of the CVE provide insight into the vulnerability's description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in widget_logic.php in the Widget Logic plugin before version 5.10.2 for WordPress allows remote attackers to execute PHP code by crafting deceptive POST requests that trick administrators into adding the malicious code.

Affected Systems and Versions

Product: Widget Logic plugin
Vendor: N/A
Versions affected: Before 5.10.2

Exploitation Mechanism

Attackers exploit this vulnerability by creating malicious snippets attached to widgets, which are then evaluated to determine their visibility. By manipulating widgets with these snippets, attackers can execute PHP code remotely.

Mitigation and Prevention

Protecting systems from CVE-2019-12826 involves immediate actions and long-term security practices.

Immediate Steps to Take

Update the Widget Logic plugin to version 5.10.2 or newer to mitigate the vulnerability.
Regularly monitor and review widget configurations for any suspicious or unauthorized changes.

Long-Term Security Practices

Implement strong input validation and output encoding to prevent CSRF attacks.
Educate administrators on recognizing and avoiding social engineering tactics used in CSRF attacks.

Patching and Updates

Stay informed about security updates and patches released by the Widget Logic plugin developers.
Apply patches promptly to ensure the WordPress site is protected against known vulnerabilities.