Summary
A SQL injection vulnerability in the Restaurant-Management-System affects the Name parameter processed by the administrative table-booking functionality. A remote attacker may be able to manipulate database queries, particularly where the vulnerable endpoint is reachable and input is incorporated without adequate parameterization.
Affected context
The weakness occurs in admin/table_booking.php, where the Name argument is processed through a database query using mysqli_query. Deployments may be exposed when this function is reachable over a network and user-controlled input reaches the query construction path without effective validation or parameter binding.
Exploit preconditions
- Attack surface: The remotely reachable table-booking administrative endpoint
- Required access: Network access to the affected functionality; authentication requirements are deployment-dependent
- Trigger point: Processing of the
Nameparameter inadmin/table_booking.php - Why exploitation is possible: Input may influence SQL query structure when it is handled without strict parameterization
Why this happens
The underlying bug is an injection flaw in which externally influenced input is incorporated into a SQL statement as query syntax rather than being treated solely as data. This maps primarily to CWE-89: Improper Neutralization of Special Elements used in an SQL Command (SQL Injection) and is also related to the broader CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component. The insecure pattern is constructing or executing database queries with untrusted values instead of using parameterized statements and controlled data access interfaces.
Potential impact
- An attacker may read sensitive database records
- An attacker could alter, insert, or delete application data
- Database integrity and availability may be affected
- Exposed credentials or secrets stored in the database could be disclosed
- The application may experience unauthorized administrative or business-logic changes
General mitigation guidance
Mitigation generally focuses on ensuring that all database operations treat external values as data rather than executable SQL.
Common defensive patterns include:
- Use parameterized queries or prepared statements for every user-influenced database value
- Apply allowlist-based validation appropriate to the expected field format
- Centralize database access through APIs that do not permit ad hoc query concatenation
- Enforce least-privilege permissions for the application database account
- Limit database credentials and sensitive records accessible to the affected function
- Avoid relying on escaping alone as the primary SQL injection defense
How teams detect issues like this
Organizations can identify similar weaknesses through:
- Static analysis rules for SQL string concatenation and unparameterized
mysqli_querycalls - Code review checks for request parameters flowing into database statements
- Testing that verifies prepared statements are used at data-access boundaries
- Runtime monitoring for anomalous query errors, unexpected query patterns, and unusual database access
- Policy enforcement requiring parameterized queries in application code and security testing pipelines
Automated code review and software composition analysis tools may help flag suspicious database-query construction patterns, but findings should be validated against the actual data flow.
