Fixed security vulnerability where users could reference any tag in the system when creating/updating tasks.
Changes:
tasks/serializers.py (TaskSerializer):
- Added __init__() method to override tag_ids queryset
- Filter Tag.objects.all() to Tag.objects.filter(user=request.user)
- Only allows users to assign their own tags to tasks
- Prevents information disclosure via tag enumeration
Security impact:
- Prevents users from accessing other users' tag IDs
- Blocks unauthorized tag association
- Protects tag privacy and prevents enumeration attacks
- Enforces proper authorization on tag-task relationships
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Added comprehensive authorization checks to prevent users from:
1. Sharing tasks/tags they don't own
2. Modifying tasks/tags that are only shared with them (read-only access)
Changes:
tasks/serializers.py (TaskShareSerializer):
- Added validation in validate() method to verify task/tag ownership
- Users can only share their own tasks and tags
- Prevents malicious users from sharing other people's resources
tasks/permissions.py (NEW):
- Created IsOwnerOrReadOnlyIfShared permission class
- Owners: full access (read, update, delete)
- Shared users: read-only access
- Prevents privilege escalation via shared access
tasks/views.py:
- Applied IsOwnerOrReadOnlyIfShared to TaskDetailAPIView
- Applied IsOwnerOrReadOnlyIfShared to TagDetailAPIView
- Enforces object-level permissions on all update/delete operations
Security impact:
- Prevents users from modifying or deleting resources they don't own
- Prevents users from sharing resources they don't own
- Maintains proper separation between owner and shared access levels
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Implement comprehensive email verification and admin approval system for user registration. Users must verify their email before logging in, and admins must approve new users before they can access the system.
Major features:
- Email verification with UUID tokens (24hr expiry, one-time use)
- Admin approval workflow via Django admin interface
- Custom authentication backend enforcing verification and approval
- Password change functionality for authenticated users
- Enhanced profile page with proper styling and theme support
- Collect first name, last name, and timezone during registration
- Profile link added to header navigation
Email notifications:
- Verification email sent after registration
- Admin notification when users need approval
- Approval notification sent to users
Security features:
- Cryptographically secure UUID tokens
- Token expiration and one-time use enforcement
- Email enumeration protection
- Custom JWT token validation for API access
- Existing users auto-approved via data migration
Templates added:
- Email templates (verification, approval, admin notification)
- Web templates (password change, verification pages)
- Enhanced profile page with dark/light mode support
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Features:
- Django-based REST API with web interface
- Task management with tags, priorities, and due dates
- Time tracking with start/stop timers
- Subtasks support
- Task filtering (all, today, upcoming, overdue, completed)
- Tag-based organization with color coding
- Sorting by due date and priority
- Auto-assign tags when filtering
- Responsive 3-pane layout (sidebar, task list, detail panel)
- Task sharing between users
- Mobile-responsive design with dark mode support
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
