CVE-2020-27467 : Vulnerability Insights and Analysis

A Directory Traversal vulnerability exists in Processwire CMS before 2.7.1 via the download parameter to index.php.

Understanding CVE-2020-27467

This CVE involves a Directory Traversal vulnerability in Processwire CMS.

What is CVE-2020-27467?

CVE-2020-27467 is a security vulnerability in Processwire CMS that allows attackers to perform Directory Traversal via the download parameter in index.php.

The Impact of CVE-2020-27467

This vulnerability can be exploited by malicious actors to access sensitive files and directories on the server, potentially leading to unauthorized data disclosure or system compromise.

Technical Details of CVE-2020-27467

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability allows an attacker to traverse directories and access files by manipulating the download parameter in index.php.

Affected Systems and Versions

Affected System: Processwire CMS
Affected Versions: Before 2.7.1

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious input into the download parameter, enabling them to navigate through directories and retrieve unauthorized files.

Mitigation and Prevention

Protect your systems from CVE-2020-27467 with these mitigation strategies.

Immediate Steps to Take

Update Processwire CMS to version 2.7.1 or later to patch the vulnerability.
Implement input validation to sanitize user-controlled data and prevent directory traversal attacks.

Long-Term Security Practices

Regularly monitor and audit file access logs for any suspicious activities.
Educate users and administrators about the risks of directory traversal attacks and best security practices.

Patching and Updates

Stay informed about security updates for Processwire CMS and promptly apply patches to address known vulnerabilities.