Horizon Alert
Summary of the vulnerability and why it matters
A security vulnerability in Chartbrew, an open-source web application for creating charts from data, could allow unauthorized access to sensitive information. The issue involves how the application processes data inputs, potentially enabling attackers to read, modify, or delete data if certain dashboard features are publicly exposed.
- Unsafe data handling in Chartbrew.
- Impacts public dashboards with SQL queries.
- Confirm relevance and verify database exposure.
Attack Path
How an attacker could exploit the issue
An attacker can exploit this vulnerability by sending specially crafted filter values in a URL to a public or embedded Chartbrew dashboard. This targets the application's handling of variables within SQL queries, particularly when used with MySQL or MariaDB databases. If successful, the attacker can execute arbitrary SQL commands against the database.
- Publicly accessible or embedded chart exposure.
- Crafted URL filter values sent to a chart.
- Read, modify, or delete database data.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could allow an unauthenticated user to manipulate SQL queries when public or embedded Chartbrew dashboards use URL-controlled variables. When supported by the advisory's context, this manipulation could lead to unauthorized data access, modification, or deletion.
- Data in connected databases at risk.
- Via crafted URL filter values.
- Unauthorized data access or modification.
Operational Fix
Recommended remediation, mitigation, and detection steps
The application owner or platform team is likely responsible for Chartbrew instances. The first practical move is to identify all deployed Chartbrew instances, confirm if they expose public or embedded dashboards, and assess their business criticality and reachability. Based on this risk assessment, a plan for remediation, which may involve coordinating with the Chartbrew vendor for updates or implementing temporary risk reduction measures, can be developed.
- Identify and locate all Chartbrew instances.
- Verify public/embedded dashboards and data exposure.
- Plan remediation based on risk and vendor guidance.
