CVE-2020-9393 : Security Advisory and Response

An issue was discovered in the pricing-table-by-supsystic plugin before 1.8.2 for WordPress, allowing XSS.

Understanding CVE-2020-9393

This CVE identifies a vulnerability in the pricing-table-by-supsystic plugin for WordPress.

What is CVE-2020-9393?

The pricing-table-by-supsystic plugin before version 1.8.2 for WordPress is susceptible to a Cross-Site Scripting (XSS) vulnerability.

The Impact of CVE-2020-9393

The vulnerability has a CVSS base score of 7.2, indicating a high severity issue with low confidentiality and integrity impacts.

Technical Details of CVE-2020-9393

This section provides more technical insights into the CVE.

Vulnerability Description

The issue allows attackers to execute malicious scripts in the context of a victim's browser when the victim visits a specially crafted webpage.

Affected Systems and Versions

Affected Product: pricing-table-by-supsystic plugin
Affected Version: before 1.8.2

Exploitation Mechanism

The vulnerability can be exploited remotely with low attack complexity and no privileges required.

Mitigation and Prevention

Protecting systems from CVE-2020-9393 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the pricing-table-by-supsystic plugin to version 1.8.2 or newer.
Implement web application firewalls to filter and block malicious traffic.

Long-Term Security Practices

Regularly monitor and audit plugins for security vulnerabilities.
Educate users about safe browsing practices to mitigate XSS risks.
Stay informed about security updates and patches for all WordPress plugins.
Consider security testing and code reviews for custom WordPress plugins.
Employ Content Security Policy (CSP) headers to mitigate XSS attacks.

Patching and Updates

Ensure timely installation of security patches and updates for all WordPress plugins to prevent exploitation of known vulnerabilities.