CVE-2020-15247 : Vulnerability Insights and Analysis

October CMS version 1.0.319 to 1.0.468 allows authenticated users to execute arbitrary PHP code by escaping the Twig sandbox.

Understanding CVE-2020-15247

This CVE describes a vulnerability in October CMS that enables authenticated users to bypass security restrictions and execute arbitrary PHP code.

What is CVE-2020-15247?

In October CMS versions 1.0.319 to 1.0.468, users with specific permissions can exploit a flaw to execute PHP code, bypassing security measures.

The Impact of CVE-2020-15247

The vulnerability poses a medium severity risk, allowing high-privileged users to execute arbitrary PHP code, compromising system integrity.

Technical Details of CVE-2020-15247

The technical aspects of the vulnerability in October CMS.

Vulnerability Description

Authenticated users with specific permissions can escape the Twig sandbox to execute PHP code.

Affected Systems and Versions

October CMS versions 1.0.319 to 1.0.468 are affected.

Exploitation Mechanism

Users with cms.manage_pages, cms.manage_layouts, or cms.manage_partials permissions can exploit the vulnerability.

Mitigation and Prevention

Protecting systems from CVE-2020-15247.

Immediate Steps to Take

Update October CMS to Build 469 (v1.0.469) or version 1.1.0 to patch the vulnerability.

Long-Term Security Practices

Disable cms.enableSafeMode if users require permissions to write and manage PHP code.
Regularly review and restrict user permissions to minimize the risk of unauthorized code execution.

Patching and Updates

Stay informed about security advisories and promptly apply patches to mitigate known vulnerabilities.