CVE-2021-27973 : Security Advisory and Response

Piwigo before version 11.4.0 is impacted by a SQL injection vulnerability via the language parameter to admin.php?page=languages.

Understanding CVE-2021-27973

This vulnerability allows attackers to inject malicious SQL queries through the language parameter, potentially leading to unauthorized access or data manipulation.

What is CVE-2021-27973?

CVE-2021-27973 is a security flaw in Piwigo that enables SQL injection attacks by exploiting the language parameter in the admin interface.

The Impact of CVE-2021-27973

Exploitation of this vulnerability could result in unauthorized access to sensitive data, data loss, or even complete takeover of the affected Piwigo installation.

Technical Details of CVE-2021-27973

The following technical details outline the specifics of the CVE vulnerability.

Vulnerability Description

The vulnerability exists in Piwigo versions prior to 11.4.0, allowing SQL injection via the language parameter in the admin.php?page=languages endpoint.

Affected Systems and Versions

All Piwigo versions before 11.4.0 are vulnerable to this SQL injection flaw when the language parameter is manipulated.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious SQL queries through the language parameter, potentially gaining unauthorized database access.

Mitigation and Prevention

Protecting your Piwigo installation from CVE-2021-27973 requires immediate action and ongoing security practices.

Immediate Steps to Take

Users are advised to update Piwigo to version 11.4.0 or later to mitigate the SQL injection risk posed by this vulnerability.

Long-Term Security Practices

Implement strict input validation, security controls, and regular security audits to prevent SQL injection and other similar attacks.

Patching and Updates

Regularly monitor for Piwigo updates and apply patches promptly to address known vulnerabilities and enhance overall security.