CVE-2021-24994 : Exploit Details and Defense Strategies

The WPvivid Backup and Migration Plugin before version 0.9.69 is affected by an Unauthenticated Stored Cross-Site Scripting vulnerability. This vulnerability arises due to the plugin lacking authorization for adding remote storages and failing to sanitize and escape parameters from unauthenticated requests.

Understanding CVE-2021-24994

This CVE ID pertains to the WPvivid Backup and Migration Plugin's security issue that allows for Stored Cross-Site Scripting attacks.

What is CVE-2021-24994?

The CVE-2021-24994 vulnerability in the WPvivid Backup and Migration Plugin before 0.9.69 enables attackers to execute malicious scripts on the plugin's admin page, potentially compromising the website's security.

The Impact of CVE-2021-24994

Exploitation of this vulnerability could lead to unauthorized access, data theft, defacement, and other malicious activities on websites using the affected plugin.

Technical Details of CVE-2021-24994

Here are some technical details related to CVE-2021-24994:

Vulnerability Description

The vulnerability allows an attacker to inject malicious scripts into the plugin's admin page, posing a risk of Cross-Site Scripting attacks.

Affected Systems and Versions

The issue affects WPvivid Backup and Migration Plugin versions prior to 0.9.69.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending unauthenticated requests to add remote storages, thereby executing arbitrary scripts.

Mitigation and Prevention

To address CVE-2021-24994, consider the following mitigation strategies:

Immediate Steps to Take

Update the WPvivid Backup and Migration Plugin to version 0.9.69 or later.
Monitor and restrict access to the plugin's admin page.

Long-Term Security Practices

Regularly update all plugins and software to their latest versions.
Implement web application firewalls and security plugins to enhance website security.

Patching and Updates

Stay informed about security advisories related to the WPvivid Backup and Migration Plugin and promptly apply patches and updates to mitigate known vulnerabilities.