CVE-2022-4753 : Security Advisory and Response

Print-O-Matic < 2.1.8 - Contributor+ Stored XSS via Shortcode

Understanding CVE-2022-4753

This CVE refers to a vulnerability in the Print-O-Matic WordPress plugin that allows users with a low role, like contributor, to execute Stored Cross-Site Scripting attacks.

What is CVE-2022-4753?

The Print-O-Matic plugin before version 2.1.8 fails to validate and escape certain shortcode attributes, enabling contributors to launch XSS attacks.

The Impact of CVE-2022-4753

The vulnerability enables lower-privileged users to potentially target high-privilege users, like admins, leading to unauthorized actions within the WordPress environment.

Technical Details of CVE-2022-4753

Vulnerability Description

The Print-O-Matic plugin's version less than 2.1.8 exposes a security flaw by not properly sanitizing shortcode attributes, thus permitting Contributor level users to conduct Stored XSS attacks.

Affected Systems and Versions

The vulnerability impacts Print-O-Matic versions prior to 2.1.8, with a custom version number less than 2.1.8.

Exploitation Mechanism

By exploiting this vulnerability, users with a Contributor role could inject malicious scripts via shortcode attributes, which may execute when accessed by higher-privileged users within the WordPress environment.

Mitigation and Prevention

Immediate Steps to Take

Users are advised to update the Print-O-Matic plugin to version 2.1.8 or higher to mitigate the risk of XSS attacks. Additionally, restricting plugin access to trusted individuals can help reduce the attack surface.

Long-Term Security Practices

Regular security audits, monitoring of plugin updates, and educating users about the risks of XSS attacks are essential for maintaining WordPress security.

Patching and Updates

Stay informed about security advisories related to the Print-O-Matic plugin, and promptly apply patches released by the vendor to address known vulnerabilities.