WordPress.DB.RestrictedFunctions.mysql_mysqli_connect_errno
mysql mysqli connect errno
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 | Matomo Analytics – Powerful, Privacy-First Insights for WordPress | 19 | 1,909 | 878 | 100k+ | Exception output is not escaped | ||
| #3 | GoUrl Bitcoin Payment Gateway & Paid Downloads & Membership | 20 | 1,832 | 720 | 800 | Non Singular String Literal Domain | ||
| #4 | Backup Migration | 21 | 981 | 1,093 | 80k+ | Non-prefixed global variable | ||
| #5 | Duplicator – Backups & Migration Plugin – Cloud Backups, Scheduled Backups, & More | 21 | 2,572 | 1,277 | 1m+ | Output is not escaped | ||
| #6 | WP phpMyAdmin | 21 | 4,528 | 6,435 | 50k+ | Missing Arg Domain | ||
| #7 | File Manager | 22 | 740 | 520 | 1m+ | Unsafe printing function | ||
| #8 | WEB-Translation – eTranslation Multilingual | 25 | 217 | 1,057 | 400 | Non-prefixed function | ||
| #9 | TranslatePress – Translate Multilingual sites with AI Translation | 25 | 452 | 1,541 | 400k+ | Non-prefixed hook name |
