CVE-2021-29002 : Vulnerability Insights and Analysis

A stored cross-site scripting (XSS) vulnerability has been identified in Plone CMS 5.2.3, specifically in the site-controlpanel through the "form.widgets.site_title" parameter.

Understanding CVE-2021-29002

This section will delve into the details of the CVE-2021-29002 vulnerability and its implications.

What is CVE-2021-29002?

The CVE-2021-29002 is a stored cross-site scripting (XSS) vulnerability discovered in Plone CMS 5.2.3, affecting the site-controlpanel module via the "form.widgets.site_title" parameter.

The Impact of CVE-2021-29002

This vulnerability could allow an attacker to inject malicious scripts into the affected Plone CMS instance, leading to potential unauthorized access or data manipulation.

Technical Details of CVE-2021-29002

Let's explore the technical specifics of CVE-2021-29002.

Vulnerability Description

The vulnerability arises from inadequate sanitization of user-supplied data in the "form.widgets.site_title" parameter, enabling malicious script injection.

Affected Systems and Versions

Plone CMS versions 5.2.3 and prior are affected by this XSS vulnerability in the site-controlpanel functionality.

Exploitation Mechanism

An attacker can exploit this vulnerability by injecting crafted scripts into the site_title parameter, which may execute within the context of a victim's browser when interacting with the affected page.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-29002.

Immediate Steps to Take

Users are advised to update their Plone CMS installations to the latest patched version to mitigate the XSS vulnerability successfully.

Long-Term Security Practices

Implement secure coding practices and conduct regular security audits to detect and address potential security loopholes within your system.

Patching and Updates

Stay proactive in applying security patches and updates provided by the Plone CMS project to safeguard your system against known vulnerabilities.