Critical Vulnerability Information This page displays the change log for the file, containing key information related to vulnerability fixes: 1. Enhanced User Permission Checks - Example Code Locations: Lines 22, 26, 105, 125 - Key Code: - Description: Added checks for user editing permissions before performing operations, ensuring only users with appropriate permissions can execute these actions. This fixes potential privilege escalation vulnerabilities caused by missing permission validation. 2. Strengthened Input Validation - Example Code Locations: Lines 23, 106, 128 - Key Code: - Description: Implemented stricter validation for incoming parameters such as , including checks for existence ( ) and type conversion ( ), to prevent potential SQL injection or other input-related vulnerabilities. 3. Improved Error Messages and User Feedback - Example Code Locations: Lines 25, 108, 132 - Key Code: - Description: Upon operation failure, clear error messages are returned to the client, informing users of specific issues such as "You are not allowed to edit galleries," enhancing user experience and security awareness. Fix Description These changes introduce enhanced user permission validation and stricter input data checks, effectively preventing security vulnerabilities caused by insufficient permission verification and inadequate input filtering, including but not limited to: Privilege escalation SQL injection Unauthorized data manipulation