CVE-2021-24362 : Vulnerability Insights and Analysis

A Stored Cross-Site Scripting (XSS) vulnerability in Photo Gallery by 10Web WordPress plugin before 1.5.75 allows attackers to execute malicious JavaScript via SVG files. Learn more about the impact, technical details, and mitigation steps.

Understanding CVE-2021-24362

This CVE describes a security issue in the Photo Gallery by 10Web WordPress plugin that can lead to a Cross-Site Scripting (XSS) attack.

What is CVE-2021-24362?

The Photo Gallery by 10Web plugin before version 1.5.75 fails to validate SVG files added to a gallery, enabling users to upload SVG files containing malicious JavaScript.

The Impact of CVE-2021-24362

Attackers can exploit this vulnerability by uploading a crafted SVG file with JavaScript code, leading to arbitrary code execution in the context of the victim's browser.

Technical Details of CVE-2021-24362

This section provides insights into the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The issue arises from the plugin's lack of validation on SVG files uploaded to the gallery, allowing malicious content to execute within the browser.

Affected Systems and Versions

The vulnerability affects Photo Gallery by 10Web versions prior to 1.5.75.

Exploitation Mechanism

An authenticated attacker can upload an SVG file containing JavaScript code, which will execute when the image is accessed directly, triggering the XSS payload.

Mitigation and Prevention

To safeguard your systems from CVE-2021-24362, immediate action and long-term security practices are crucial.

Immediate Steps to Take

Update the Photo Gallery by 10Web plugin to version 1.5.75 or newer to mitigate the vulnerability.
Restrict user permissions to prevent unauthorized file uploads.

Long-Term Security Practices

Regularly scan for vulnerabilities in WordPress plugins and themes.
Educate users about safe file upload practices to prevent XSS attacks.

Patching and Updates

Stay informed about security updates for all installed plugins and themes and apply patches promptly to minimize the risk of exploitation.