Summary
KusalkaSilva Learning-Management-System contains a missing-authentication vulnerability in the remove_announcements.php state-changing endpoint. A remote attacker may manipulate the announcement ID parameter to perform an action without the authentication normally required to protect it.
KusalkaSilva Learning-Management-System contains a missing-authentication vulnerability in the remove_announcements.php state-changing endpoint. A remote attacker may manipulate the announcement ID parameter to perform an action without the authentication normally required to protect it.
Affected context
The issue affects deployments of KusalkaSilva Learning-Management-System through the identified revision range when the announcement-removal functionality is reachable remotely and does not consistently enforce authentication before processing the supplied ID. Risk depends on endpoint exposure, authorization design, and the privileges associated with the affected operation.
The issue affects deployments of KusalkaSilva Learning-Management-System through the identified revision range when the announcement-removal functionality is reachable remotely and does not consistently enforce authentication before processing the supplied ID. Risk depends on endpoint exposure, authorization design, and the privileges associated with the affected operation.
Exploit preconditions
- Attack surface: Remotely reachable state-changing HTTP endpoint
- Required access: Network access to the affected application; valid authentication may not be required
- Trigger point: Processing the ID argument by
remove_announcements.php - Why exploitation is possible: The endpoint can perform an announcement-related action without first establishing that the requester is authenticated
- Attack surface: Remotely reachable state-changing HTTP endpoint
- Required access: Network access to the affected application; valid authentication may not be required
- Trigger point: Processing the ID argument by
remove_announcements.php - Why exploitation is possible: The endpoint can perform an announcement-related action without first establishing that the requester is authenticated
Why this happens
The underlying flaw is an authorization boundary failure in a state-changing endpoint. The application processes a user-controlled identifier and invokes database-backed functionality without reliably requiring an authenticated session first. This behavior maps primarily to CWE-287: Improper Authentication and is also related to CWE-306: Missing Authentication for Critical Function, because a potentially sensitive operation is available without the expected identity check.
The underlying flaw is an authorization boundary failure in a state-changing endpoint. The application processes a user-controlled identifier and invokes database-backed functionality without reliably requiring an authenticated session first. This behavior maps primarily to CWE-287: Improper Authentication and is also related to CWE-306: Missing Authentication for Critical Function, because a potentially sensitive operation is available without the expected identity check.
Potential impact
- An unauthenticated attacker may remove or alter announcements
- Unauthorized changes could affect the integrity of learning-management content
- Users may receive incomplete, misleading, or unavailable announcements
- Repeated requests could cause service disruption or administrative overhead
- The endpoint could provide a foothold for testing other authorization weaknesses
- An unauthenticated attacker may remove or alter announcements
- Unauthorized changes could affect the integrity of learning-management content
- Users may receive incomplete, misleading, or unavailable announcements
- Repeated requests could cause service disruption or administrative overhead
- The endpoint could provide a foothold for testing other authorization weaknesses
General mitigation guidance
Mitigation generally centers on enforcing authentication and authorization before every state-changing operation.
Common defensive patterns include:
- Require an authenticated session before processing the endpoint
- Enforce server-side authorization for the specific announcement and requested action
- Treat all identifiers and request parameters as untrusted
- Use narrowly scoped application identities and database permissions
- Apply CSRF protections where browser-based authenticated sessions are supported
- Return consistent responses that do not disclose sensitive authorization details
- Prefer deny-by-default access policies for state-changing routes
Mitigation generally centers on enforcing authentication and authorization before every state-changing operation.
Common defensive patterns include:
- Require an authenticated session before processing the endpoint
- Enforce server-side authorization for the specific announcement and requested action
- Treat all identifiers and request parameters as untrusted
- Use narrowly scoped application identities and database permissions
- Apply CSRF protections where browser-based authenticated sessions are supported
- Return consistent responses that do not disclose sensitive authorization details
- Prefer deny-by-default access policies for state-changing routes
How teams detect issues like this
Organizations can look for this class of issue through:
- Static analysis rules identifying state-changing routes without authentication middleware
- Code review checks for database operations reached before identity and permission validation
- Endpoint inventories that classify all mutation-capable routes and their access policies
- Integration tests that verify anonymous requests are rejected consistently
- Web-application logs showing unauthenticated requests to mutation endpoints or repeated ID changes
- Policy enforcement in CI that requires authentication and authorization annotations for sensitive handlers
Organizations can look for this class of issue through:
- Static analysis rules identifying state-changing routes without authentication middleware
- Code review checks for database operations reached before identity and permission validation
- Endpoint inventories that classify all mutation-capable routes and their access policies
- Integration tests that verify anonymous requests are rejected consistently
- Web-application logs showing unauthenticated requests to mutation endpoints or repeated ID changes
- Policy enforcement in CI that requires authentication and authorization annotations for sensitive handlers
Sources
| Source | Link |
|---|---|
| github. | github.com/ |
| github. | github.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
