CVE-2021-32735 : What You Need to Know

Kirby CMS versions 3.5.5 and 3.5.6 are vulnerable to a Cross-site scripting (XSS) attack due to displaying HTML in page titles. This could lead to privilege escalation for authenticated users. Learn about the impact, technical details, and mitigation steps for CVE-2021-32735.

Understanding CVE-2021-32735

This section delves into the details of the XSS vulnerability found in Kirby CMS versions 3.5.5 and 3.5.6.

What is CVE-2021-32735?

Kirby CMS versions 3.5.5 and 3.5.6 have a vulnerability that allows malicious authenticated users to conduct XSS attacks by displaying HTML in page titles.

The Impact of CVE-2021-32735

The impact of this vulnerability includes privilege escalation for authenticated users and a potential attack vector for visitors without Panel access.

Technical Details of CVE-2021-32735

Explore the technical aspects of the vulnerability in Kirby CMS versions 3.5.5 and 3.5.6.

Vulnerability Description

The vulnerability in Kirby CMS versions 3.5.5 and 3.5.6 arises from displaying HTML in the Panel's

ListItem

component, facilitating XSS attacks.

Affected Systems and Versions

Kirby CMS versions 3.5.5 and 3.5.6 are impacted by this XSS vulnerability.

Exploitation Mechanism

Malicious authenticated users can exploit the XSS vulnerability to escalate their privileges, posing a risk to site security.

Mitigation and Prevention

Discover the steps to mitigate and prevent the XSS vulnerability in Kirby CMS versions 3.5.5 and 3.5.6.

Immediate Steps to Take

Site administrators should update to Kirby 3.5.7 to patch the vulnerability and protect against XSS attacks.

Long-Term Security Practices

Implement data validation and sanitization to protect against attacks from visitors without Panel access.

Patching and Updates

Ensure timely installation of security patches and updates to address vulnerabilities and enhance system security.