CVE-2021-25092 : Vulnerability Insights and Analysis

WordPress plugin Link Library before 7.2.8 is vulnerable to a CSRF attack when resetting library settings. An attacker can exploit this issue to manipulate logged-in admin settings.

Understanding CVE-2021-25092

This CVE highlights a security vulnerability in the Link Library WordPress plugin that exposes it to Cross-Site Request Forgery (CSRF) attacks.

What is CVE-2021-25092?

The CVE-2021-25092 vulnerability in the Link Library plugin allows an attacker to trick an authenticated admin into unknowingly changing critical settings via a CSRF attack.

The Impact of CVE-2021-25092

With this vulnerability, an attacker can manipulate the settings of the Link Library plugin through a logged-in admin account, potentially leading to unauthorized changes and manipulation of crucial configurations.

Technical Details of CVE-2021-25092

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in the Link Library plugin arises due to the lack of CSRF protection when handling requests to reset library settings, enabling malicious actors to forge requests to manipulate settings.

Affected Systems and Versions

The Link Library plugin versions prior to 7.2.8 are vulnerable to this CSRF attack, exposing websites to potential exploitation.

Exploitation Mechanism

By exploiting the absence of CSRF checks in the plugin's process for resetting library settings, attackers can execute unauthorized changes through a logged-in admin account.

Mitigation and Prevention

To safeguard against the CVE-2021-25092 vulnerability in the Link Library plugin, users can take the following steps.

Immediate Steps to Take

Users should update the Link Library plugin to version 7.2.8 or above, which includes a patch to address the CSRF vulnerability. Implementing strong CSRF protection on web applications can also mitigate such attacks.

Long-Term Security Practices

Regularly updating plugins and themes, using a Web Application Firewall (WAF) to filter malicious traffic, and educating users about CSRF attacks can enhance long-term security.

Patching and Updates

Ensuring timely installation of security patches and updates provided by the plugin vendor is crucial to maintaining a secure environment and defending against known vulnerabilities.