Summary
phpMyFAQ contains a cross-site request forgery vulnerability in the administrative database migration endpoint because requests are processed without validating a CSRF token. If a logged-in user with the required configuration permission visits attacker-controlled content, a browser may be induced to submit a migration request that affects database integrity or availability.
phpMyFAQ contains a cross-site request forgery vulnerability in the administrative database migration endpoint because requests are processed without validating a CSRF token. If a logged-in user with the required configuration permission visits attacker-controlled content, a browser may be induced to submit a migration request that affects database integrity or availability.
Affected context
The issue occurs in phpMyFAQ administrative deployments where the POST /admin/api/update-database endpoint can be reached by an authenticated user holding the CONFIGURATION_EDIT permission. Risk depends on whether the application relies on ambient browser authentication and whether the endpoint performs state-changing database operations without an application-validated anti-CSRF control.
The issue occurs in phpMyFAQ administrative deployments where the POST /admin/api/update-database endpoint can be reached by an authenticated user holding the CONFIGURATION_EDIT permission. Risk depends on whether the application relies on ambient browser authentication and whether the endpoint performs state-changing database operations without an application-validated anti-CSRF control.
Exploit preconditions
- Attack surface: The administrative HTTP POST endpoint for database updates
- Required access: A victim must be authenticated and have the CONFIGURATION_EDIT permission
- Trigger point: A cross-site request targeting the database migration operation
- Why exploitation is possible: The endpoint accepts a state-changing request without validating a request-specific CSRF token
- User condition: The victim generally must visit or interact with attacker-controlled content while the authenticated session remains usable
- Attack surface: The administrative HTTP POST endpoint for database updates
- Required access: A victim must be authenticated and have the CONFIGURATION_EDIT permission
- Trigger point: A cross-site request targeting the database migration operation
- Why exploitation is possible: The endpoint accepts a state-changing request without validating a request-specific CSRF token
- User condition: The victim generally must visit or interact with attacker-controlled content while the authenticated session remains usable
Why this happens
The underlying bug is a missing request-origin and intent validation control on a state-changing administrative action. Because the endpoint does not require a valid CSRF token tied to the user's session or request context, a browser may automatically attach authentication information to a request initiated by another site. This behavior maps to CWE-352, Cross-Site Request Forgery.
The underlying bug is a missing request-origin and intent validation control on a state-changing administrative action. Because the endpoint does not require a valid CSRF token tied to the user's session or request context, a browser may automatically attach authentication information to a request initiated by another site. This behavior maps to CWE-352, Cross-Site Request Forgery.
Potential impact
- An attacker may trigger database migrations without the administrator's deliberate intent.
- Database integrity could be altered or migration state could become inconsistent.
- The service may experience degraded availability if a migration fails or causes operational disruption.
- Administrative actions performed through the victim's session could complicate recovery and auditing.
- An attacker may trigger database migrations without the administrator's deliberate intent.
- Database integrity could be altered or migration state could become inconsistent.
- The service may experience degraded availability if a migration fails or causes operational disruption.
- Administrative actions performed through the victim's session could complicate recovery and auditing.
General mitigation guidance
Mitigation generally focuses on requiring explicit proof of request intent
for every state-changing administrative operation.
Common defensive patterns include:
- Enforcing unpredictable, session-bound CSRF tokens on the endpoint.
- Applying the same CSRF protections consistently to all administrative POST actions.
- Validating request origin or site context as an additional defense-in-depth control.
- Avoiding state changes through cross-site navigations and requiring appropriate request methods.
- Limiting database migration permissions and administrative privileges to the smallest necessary scope.
- Using clear reauthentication or confirmation controls for high-impact maintenance operations.
- Keeping administrative interfaces isolated from untrusted browsing contexts where practical.
Mitigation generally focuses on requiring explicit proof of request intent
for every state-changing administrative operation.
Common defensive patterns include:
- Enforcing unpredictable, session-bound CSRF tokens on the endpoint.
- Applying the same CSRF protections consistently to all administrative POST actions.
- Validating request origin or site context as an additional defense-in-depth control.
- Avoiding state changes through cross-site navigations and requiring appropriate request methods.
- Limiting database migration permissions and administrative privileges to the smallest necessary scope.
- Using clear reauthentication or confirmation controls for high-impact maintenance operations.
- Keeping administrative interfaces isolated from untrusted browsing contexts where practical.
How teams detect issues like this
Detection approaches can include:
- Static analysis and code review checks for state-changing routes that lack CSRF middleware or token validation.
- Reviewing administrative POST handlers for reliance solely on cookies or other ambient authentication.
- Testing whether requests without valid CSRF tokens are rejected consistently.
- Enforcing framework and API security policies requiring anti-CSRF controls for browser-authenticated state changes.
- Monitoring audit logs for unexpected database migration requests, unusual referrers, or actions outside normal maintenance windows.
- Using automated security review tools to identify missing CSRF protections in controller and routing code.
Detection approaches can include:
- Static analysis and code review checks for state-changing routes that lack CSRF middleware or token validation.
- Reviewing administrative POST handlers for reliance solely on cookies or other ambient authentication.
- Testing whether requests without valid CSRF tokens are rejected consistently.
- Enforcing framework and API security policies requiring anti-CSRF controls for browser-authenticated state changes.
- Monitoring audit logs for unexpected database migration requests, unusual referrers, or actions outside normal maintenance windows.
- Using automated security review tools to identify missing CSRF protections in controller and routing code.
