Summary
A SQL injection vulnerability in SourceCodester Performance Indicator System 1.0 allows attacker-controlled input in the pqty parameter to influence database queries. Because the affected endpoint is remotely reachable, an unauthenticated or insufficiently restricted attacker may be able to access or alter database information, depending on database permissions.
A SQL injection vulnerability in SourceCodester Performance Indicator System 1.0 allows attacker-controlled input in the pqty parameter to influence database queries. Because the affected endpoint is remotely reachable, an unauthenticated or insufficiently restricted attacker may be able to access or alter database information, depending on database permissions.
Affected context
The vulnerability occurs in the remote /opils/staff/edit_quantity.php endpoint when it processes the pqty parameter. It becomes risky when request data reaches database query construction without reliable parameterization, validation, or equivalent query-separation controls.
The vulnerability occurs in the remote /opils/staff/edit_quantity.php endpoint when it processes the pqty parameter. It becomes risky when request data reaches database query construction without reliable parameterization, validation, or equivalent query-separation controls.
Exploit preconditions
- Attack surface: The remotely accessible staff quantity-editing endpoint - Required access: Potentially no authenticated access, depending on
application routing and access controls
- Trigger point: Processing the
pqtyrequest parameter - Why exploitation is possible: Input may be incorporated into a database
query without sufficient separation between data and SQL instructions
- Attack surface: The remotely accessible staff quantity-editing endpoint - Required access: Potentially no authenticated access, depending on
application routing and access controls
- Trigger point: Processing the
pqtyrequest parameter - Why exploitation is possible: Input may be incorporated into a database
query without sufficient separation between data and SQL instructions
Why this happens
The underlying bug is improper handling of externally supplied input in a database query. When application code constructs SQL statements by combining untrusted values with query text, attacker-controlled content can change the intended query structure. This behavior maps primarily to CWE-89, SQL Injection; CWE-74 also reflects the broader failure to neutralize or constrain special elements in an interpreted command language.
The underlying bug is improper handling of externally supplied input in a database query. When application code constructs SQL statements by combining untrusted values with query text, attacker-controlled content can change the intended query structure. This behavior maps primarily to CWE-89, SQL Injection; CWE-74 also reflects the broader failure to neutralize or constrain special elements in an interpreted command language.
Potential impact
- An attacker may read unauthorized database records.
- An attacker could modify or delete application data.
- Database integrity and application functionality may be affected.
- Exposed database privileges could allow broader compromise of connected
services.
- An attacker may read unauthorized database records.
- An attacker could modify or delete application data.
- Database integrity and application functionality may be affected.
- Exposed database privileges could allow broader compromise of connected
services.
General mitigation guidance
Mitigation generally centers on ensuring that all database operations use parameterized queries or prepared statements rather than dynamically concatenated SQL. Input trust should be reduced through server-side type, range, and schema validation for quantity values, while validation should complement rather than replace query parameterization. Database accounts should use least privilege, sensitive endpoints should require appropriate authorization, and detailed database errors should not be exposed to clients. Secure-by-default data-access abstractions and centralized query handling can reduce inconsistent protection across the application.
Mitigation generally centers on ensuring that all database operations use parameterized queries or prepared statements rather than dynamically concatenated SQL. Input trust should be reduced through server-side type, range, and schema validation for quantity values, while validation should complement rather than replace query parameterization. Database accounts should use least privilege, sensitive endpoints should require appropriate authorization, and detailed database errors should not be exposed to clients. Secure-by-default data-access abstractions and centralized query handling can reduce inconsistent protection across the application.
How teams detect issues like this
Detection can include static analysis for string concatenation or formatting used to build SQL statements, especially near request parameters such as pqty. Code review should look for raw query APIs, missing prepared statements, weak authorization on data-editing endpoints, and validation that occurs only on the client side. Dynamic testing may monitor for database errors, unexpected query behavior, and anomalous requests, while policy enforcement can require parameterized database access patterns in CI. Neutral automated code-review and SAST tools may help identify these patterns.
Detection can include static analysis for string concatenation or formatting used to build SQL statements, especially near request parameters such as pqty. Code review should look for raw query APIs, missing prepared statements, weak authorization on data-editing endpoints, and validation that occurs only on the client side. Dynamic testing may monitor for database errors, unexpected query behavior, and anomalous requests, while policy enforcement can require parameterized database access patterns in CI. Neutral automated code-review and SAST tools may help identify these patterns.
Sources
| Source | Link |
|---|---|
| github. | github.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
| sourcecodester. | sourcecodester.com/ |
