CVE-2021-25075 : What You Need to Know

This article provides detailed information about CVE-2021-25075, a vulnerability in the Duplicate Page or Post WordPress plugin before version 1.5.1 that could lead to arbitrary settings update to Stored Cross-Site Scripting (XSS).

Understanding CVE-2021-25075

This section covers what CVE-2021-25075 is and its impact on the affected systems.

What is CVE-2021-25075?

The Duplicate Page or Post WordPress plugin before 1.5.1 lacks authorization and has a flawed CSRF check, allowing authenticated users to modify plugin settings or execute attacks via CSRF, potentially resulting in Stored XSS issues.

The Impact of CVE-2021-25075

The vulnerability could be exploited by attackers to perform unauthorized actions or execute malicious scripts on the affected WordPress sites, potentially leading to data theft or compromise.

Technical Details of CVE-2021-25075

In this section, we delve into the specifics of the vulnerability, including its description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The flaw arises from the improper authorization checks and inadequate CSRF protection in the wpdevart_duplicate_post_parametrs_save_in_db AJAX action, enabling unauthorized users to modify plugin settings and execute XSS attacks due to lack of proper input validation.

Affected Systems and Versions

The vulnerability impacts the Duplicate Page or Post plugin versions prior to 1.5.1, exposing WordPress installations with this plugin to the security risk.

Exploitation Mechanism

Attackers with authenticated access, even at the subscriber level, can leverage CSRF to exploit this vulnerability by triggering the flawed AJAX action, leading to unauthorized changes and potential XSS payloads.

Mitigation and Prevention

This section outlines the immediate steps to take and long-term security practices to mitigate the risk associated with CVE-2021-25075.

Immediate Steps to Take

Users are advised to update the Duplicate Page or Post plugin to version 1.5.1 or later to patch the vulnerability. Additionally, monitoring for any unauthorized changes in plugin settings is recommended.

Long-Term Security Practices

Implementing robust authentication mechanisms, regular security audits, and ensuring timely patching of software vulnerabilities can enhance the overall security posture of WordPress sites.

Patching and Updates

Staying informed about security patches released by plugin developers and promptly applying them to the WordPress plugins and themes can prevent exploitation of known vulnerabilities.