CVE-2026-73300 in Budibase
Summary
by MITRE • 08/12/2026
Budibase is an open-source low-code platform. Prior to 3.40.0, the MySQL integration component in Budibase is configured with multipleStatements: true, enabling execution of multiple SQL statements in a single query. Attackers can inject malicious SQL commands through user input fields, leading to complete database compromise. This vulnerability is fixed in 3.40.0.
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Analysis
by VulDB Data Team • 08/12/2026
The vulnerability in Budibase's MySQL integration component represents a critical security flaw that stems from improper configuration of the database connection parameters. This issue affects versions prior to 3.40.0 where the multipleStatements: true setting is enabled by default, creating an environment where malicious SQL injection attacks can execute arbitrary commands against the underlying database system. The configuration allows for the execution of multiple SQL statements within a single query, which fundamentally violates secure coding practices and opens the door to devastating attack vectors.
The technical implementation flaw resides in how user input is processed within the MySQL integration module. When developers configure the database connection with multipleStatements: true, they create an environment where any user-controlled input that gets directly concatenated into SQL queries becomes a potential attack surface. This configuration bypasses standard SQL injection prevention mechanisms and allows attackers to append additional malicious SQL commands to legitimate queries through input fields. The vulnerability operates at the database driver level where input validation fails to properly sanitize or escape user-provided data before being executed against the MySQL server.
This vulnerability has severe operational impact across multiple attack vectors that align with the techniques documented in the MITRE ATT&CK framework under the Database Operations category. Attackers can leverage this flaw to perform unauthorized data access, data manipulation, and potentially gain complete control over database operations including privilege escalation and lateral movement within database environments. The compromise extends beyond simple data theft to include potential system-wide damage through destructive SQL commands that can alter or delete database structures. Organizations using affected versions face risks of regulatory compliance violations, data breaches, and reputational damage.
The mitigation strategy involves updating to version 3.40.0 or later where the multipleStatements parameter has been properly configured to prevent malicious SQL injection attacks. Security teams should also implement comprehensive input validation mechanisms, employ prepared statements for all database interactions, and conduct regular security assessments of integration components. Organizations must review their current database configurations to ensure multipleStatements is disabled in production environments and implement proper access controls and monitoring for database activities. The fix addresses the root cause by removing the dangerous configuration parameter that enabled the vulnerability while maintaining necessary functionality through secure alternative implementations.
This vulnerability type maps directly to CWE-89 SQL Injection and CWE-1243 Improper Neutralization of Special Elements used in a SQL Command, demonstrating how improper configuration of database connection parameters can create exploitable conditions. The ATT&CK framework categorizes this under Database Operations where adversaries can manipulate database systems through injection techniques, making it particularly dangerous for low-code platforms that often provide direct database integration capabilities without sufficient security hardening. Organizations should consider implementing automated security scanning tools that can detect such misconfigurations in their deployment environments to prevent exploitation of similar vulnerabilities across their infrastructure.