CVE-2020-11083 : Security Advisory and Response

In October from version 1.0.319 to 1.0.466, a stored XSS vulnerability allowed users to execute malicious scripts. This issue has been resolved in version 1.0.466.

Understanding CVE-2020-11083

October CMS versions between 1.0.319 and 1.0.466 were susceptible to a stored XSS vulnerability.

What is CVE-2020-11083?

This CVE refers to a security flaw in October CMS versions that could enable a user to perform a stored XSS attack.

The Impact of CVE-2020-11083

The vulnerability could allow an attacker to execute arbitrary scripts within the context of the user's session, potentially leading to unauthorized actions.

Technical Details of CVE-2020-11083

The technical aspects of the vulnerability are crucial to understanding its implications.

Vulnerability Description

A user with access to a markdown FormWidget in affected versions could exploit the vulnerability to execute a stored XSS attack.

Affected Systems and Versions

Product: October CMS
Vendor: October CMS
Versions: >= 1.0.319, < 1.0.466

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: High
User Interaction: Required

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are essential to mitigate the risks associated with CVE-2020-11083.

Immediate Steps to Take

Upgrade October CMS to version 1.0.466 or later.
Update the RainLab.Blog plugin to version 1.4.1.

Long-Term Security Practices

Regularly monitor and update software components.
Educate users on safe browsing habits and security best practices.

Patching and Updates

Apply security patches promptly to address known vulnerabilities.