WordPress.DB.RestrictedFunctions.mysql_mysql_error
mysql mysql error
The plugin uses a raw MySQL extension or class instead of WordPress database APIs.
Why It Shows Up
The scan found `mysql_*`, `mysqli_*`, PDO MySQL, or related database functions in plugin code.
Why It Matters
Bypassing `$wpdb` can ignore WordPress database configuration, escaping conventions, character sets, and compatibility layers.
How to Fix
- Replace raw MySQL calls with `$wpdb` methods or higher-level WordPress APIs.
- Use `$wpdb->prepare()` for dynamic values.
- If a third-party library requires a database connection, isolate it and document why WordPress APIs cannot be used.
References
Affected Plugins
| Rank | Plugin | Score | Errors | Warnings | Installs | Added | Updated | Top Issue |
|---|---|---|---|---|---|---|---|---|
| #1 | WPPizza – A Restaurant Plugin | 18 | 4,689 | 2,703 | 1k+ | Text Domain Mismatch | ||
| #2 | rtMedia for WordPress, BuddyPress and bbPress | 21 | 363 | 633 | 8k+ | Non-prefixed constant | ||
| #3 | Duplicator – Backups & Migration Plugin – Cloud Backups, Scheduled Backups, & More | 21 | 2,572 | 1,277 | 1m+ | Output is not escaped | ||
| #4 | Database Access with Adminer | 22 | 983 | 2,553 | 1k+ | Non-prefixed global variable | ||
| #5 | ManageWP Worker | 22 | 507 | 565 | 1m+ | Non-prefixed class | ||
| #6 | WP Umbrella: Update Backup Restore & Monitoring | 22 | 921 | 919 | 70k+ | Exception output is not escaped | ||
| #7 | Clone | 23 | 244 | 262 | 40k+ | Output is not escaped | ||
| #8 | Backuply – Backup, Restore, Migrate and Clone | 24 | 704 | 551 | 700k+ | Non-prefixed global variable | ||
| #9 | InstaWP Connect – 1-click WP Staging & Migration | 24 | 253 | 811 | 40k+ | Non-prefixed global variable | ||
| #10 | Database Manager – WP Adminer | 24 | 1,005 | 2,752 | 20k+ | Non-prefixed global variable | ||
| #11 | Softaculous | 24 | 115 | 50 | 10k+ | file system operations fread | ||
| #12 | UpdraftPlus: WP Backup & Migration Plugin | 24 | 277 | 299 | 3m+ | Non-prefixed global variable | ||
| #13 | Advanced WordPress Reset – Debug, Recover & Reset WP | 25 | 475 | 464 | 20k+ | Output is not escaped | ||
| #14 | Polls CP | 27 | 399 | 500 | 400 | Output is not escaped | ||
| #15 | DB Cache Reloaded Fix | 29 | 133 | 42 | 2k+ | Output is not escaped | ||
| #16 | HTML5 jQuery Audio Player | 32 | 251 | 153 | 1k+ | Unsafe printing function |
