CVE-2022-1093 : Security Advisory and Response

This article provides detailed information about CVE-2022-1093, a vulnerability found in the WP Meta SEO WordPress plugin before version 4.4.7 that allows a high privilege user to execute a stored Cross-Site Scripting attack through breadcrumbs.

Understanding CVE-2022-1093

CVE-2022-1093 is a security vulnerability identified in the WP Meta SEO WordPress plugin that enables an attacker with high privileges, such as an administrator, to inject malicious JavaScript code into a webpage by exploiting the way breadcrumbs are handled.

What is CVE-2022-1093?

The vulnerability in the WP Meta SEO plugin, prior to version 4.4.7, arises from an inadequate sanitization process of the breadcrumb separator. This flaw allows an administrator or a user with similar access levels to insert arbitrary JavaScript code into the webpage, even if unfiltered HTML is restricted.

The Impact of CVE-2022-1093

Exploiting this vulnerability can lead to a stored Cross-Site Scripting (XSS) attack, compromising the security and integrity of the affected website. An attacker could execute malicious scripts, steal sensitive data, or perform unauthorized actions on behalf of an authenticated user.

Technical Details of CVE-2022-1093

The technical aspects of CVE-2022-1093 include details on the vulnerability, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability allows for the injection of arbitrary JavaScript code by leveraging the mishandling of breadcrumb separators in the WP Meta SEO plugin versions prior to 4.4.7, enabling a stored XSS attack.

Affected Systems and Versions

WP Meta SEO versions less than 4.4.7 are impacted by this vulnerability. Users with vulnerable versions are at risk of exploitation unless adequate security measures are implemented.

Exploitation Mechanism

By manipulating the breadcrumb separator functionality, an attacker with high privileges can plant malicious scripts within the webpage, potentially leading to unauthorized access, data theft, or other harmful activities.

Mitigation and Prevention

To safeguard systems from CVE-2022-1093, immediate actions along with long-term security practices and regular patching are essential.

Immediate Steps to Take

Affected users should update WP Meta SEO to version 4.4.7 or newer immediately. Additionally, restricting access to administrative functionalities can reduce the risk of exploitation.

Long-Term Security Practices

Implementing security best practices such as input validation, output encoding, and user permission management is crucial to mitigate the risks associated with Cross-Site Scripting vulnerabilities.

Patching and Updates

Regularly updating plugins, maintaining web application firewalls, and conducting security audits are vital for ensuring the ongoing security of WordPress websites.