Release v1.9.0

Performance Enhancements

• Export Locking: Implemented a lock using transients (sse_export_lock) to prevent concurrent export processes and reduce server load.
• User-Configurable File Size Limits: Added a user-friendly dropdown in the export form to exclude files larger than selected sizes (100MB, 500MB, 1GB, or no limit).

Code Quality Improvements

• Centralized Configuration: Created SSE_ALLOWED_EXTENSIONS constant to eliminate code duplication for file extension validation.
• Unified Validation: Consolidated file extension validation logic into a single reusable function.

User Experience Improvements

• Enhanced Export Form: Added intuitive file size limit selection directly in the export interface, eliminating the need for developers to write custom filter code.

Security Hardening

• WP-CLI Verification: Added executable/existence verification for PATH-discovered WP-CLI binary
• Error Output Sanitization: Sanitized WP-CLI failure output (path masking, line limiting) to prevent filesystem disclosure
• Graceful Scheduled Deletion: Treats missing file during scheduled cleanup as info (likely already removed) instead of error
• Conditional Root Flag: Added conditional inclusion of --allow-root only when actually running as root
• Strict Download Validation: Hardened download file data validation (type checks, required keys, numeric size enforcement)
• Secure File Data Handling: Added stronger sanitization and non-positive size rejection before serving downloads

Installation

1. Download the zip file
2. Upload to your WordPress site through the Plugins > Add New > Upload menu
3. Activate the plugin

Full Documentation