CVE-2021-27946 Explained : Impact and Mitigation

A SQL Injection vulnerability in MyBB before version 1.8.26 has been identified through poll vote count, marked as issue 1 of 3.

Understanding CVE-2021-27946

This CVE record discloses a SQL Injection vulnerability in MyBB platform that could be exploited via poll vote count and is marked as the first of three issues.

What is CVE-2021-27946?

The CVE-2021-27946 relates to a critical SQL Injection vulnerability found in MyBB before version 1.8.26, specifically via the poll vote count feature.

The Impact of CVE-2021-27946

The vulnerability allows attackers to perform SQL Injection attacks, potentially resulting in unauthorized access to sensitive data, manipulation, or even complete system compromise.

Technical Details of CVE-2021-27946

The technical details of the CVE-2021-27946 include:

Vulnerability Description

The vulnerability lies in MyBB software before version 1.8.26 where an attacker can inject malicious SQL queries through the poll vote count feature.

Affected Systems and Versions

MyBB versions before 1.8.26 are affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited by manipulating the poll vote count parameters to inject SQL queries.

Mitigation and Prevention

To safeguard your systems from CVE-2021-27946, consider the following measures:

Immediate Steps to Take

Update MyBB software to version 1.8.26 or later to patch the vulnerability.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Implement strict input validation mechanisms to sanitize user inputs.
Conduct regular security audits and penetration testing.

Patching and Updates

Stay informed about security updates and patches released by MyBB and apply them promptly to mitigate the risk of SQL Injection attacks.