CVE-2020-35933 : Security Advisory and Response

A Reflected Authenticated Cross-Site Scripting (XSS) vulnerability in the Newsletter plugin before 6.8.2 for WordPress allows remote attackers to trick victims into submitting malicious requests.

Understanding CVE-2020-35933

This CVE involves a vulnerability in the Newsletter plugin for WordPress that could be exploited by attackers to execute XSS attacks.

What is CVE-2020-35933?

The vulnerability allows remote attackers to deceive users into sending crafted AJAX requests containing JavaScript, potentially leading to unauthorized actions on the victim's behalf.

The Impact of CVE-2020-35933

CVSS Base Score: 6.5 (Medium Severity)
Attack Vector: Network
User Interaction: Required
Scope: Changed
Confidentiality, Integrity, and Availability Impact: Low
Privileges Required: Low

Technical Details of CVE-2020-35933

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability in the Newsletter plugin allows attackers to execute XSS attacks by manipulating AJAX requests.

Affected Systems and Versions

Affected Versions: Newsletter plugin before 6.8.2 for WordPress

Exploitation Mechanism

Attackers can exploit this vulnerability by tricking users into submitting malicious AJAX requests containing JavaScript.

Mitigation and Prevention

Protecting systems from CVE-2020-35933 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Newsletter plugin to version 6.8.2 or newer.
Educate users about the risks of executing scripts from untrusted sources.

Long-Term Security Practices

Regularly update plugins and software to patch known vulnerabilities.
Implement content security policies to mitigate XSS risks.
Monitor and filter user-generated content to prevent malicious scripts.
Conduct security audits and penetration testing regularly.
Stay informed about security best practices and emerging threats.

Patching and Updates

Ensure timely installation of security patches and updates to prevent exploitation of known vulnerabilities.