WP Database Backup <= 7.11 - Authenticated (Administrator+) OS Command Injection via 'wp_db_exclude_table' Parameter
The WP Database Backup – Unlimited Database & Files Backup by Backup for WP plugin for WordPress is vulnerable to OS Command Injection in all versions up to and including 7.11 via the wp_db_exclude_table parameter. This is due to the direct concatenation of user-supplied $_POST['wp_db_exclude_table'] values into the mysqldump shell command string in the mysqldump() function of includes/admin/class-wpdb-admin.php without wrapping them in escapeshellarg()—every other argument in the same command (DB_USER, DB_PASSWORD, host, filename, DB_NAME) is properly escaped, making the exclude-table values the sole exception—and because the only applied filtering, sanitize_text_field() via recursive_sanitize_text_field(), strips HTML tags but leaves shell metacharacters such as ;, |, `, and $() intact. This makes it possible for authenticated attackers, with administrator-level access and above, to execute arbitrary operating system commands on the server, potentially enabling full remote code execution. The injection is stored: malicious values submitted through the plugin settings form are persisted to the WordPress options table via update_option('wp_db_exclude_table') and later retrieved with get_option() and passed unsanitized to shell_exec() whenever a backup operation runs.
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| Platforma | Paczka | Podatne wersje | Poprawka w wersji |
|---|---|---|---|
| Wtyczka WordPress | WP Database Backup – Unlimited Database & Files Backup by Backup for WP | <= 7.11 | 7.12 |
Odnośniki
- Wektor CVSS
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- Słabość (CWE)
CWE-77- Platforma
- WordPress
- Paczka
WP Database Backup – Unlimited Database & Files Backup by Backup for WP- Ujawniono
- 01.07.2026
- Aktualizacja
- 11.10.2026 10:22
Źródła i licencje
Wordfence Intelligence - 0a97a217-b00b-4268-a472-8d62ae1d18e3 - Wordfence Intelligence
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Historia podatności: WP Database Backup – Unlimited Database & Files Backup by Backup for WP
Wszystkie opisane podatności tej paczki (Wtyczka WordPress), od najnowszej. Widać, czy to jednorazowa wpadka, czy paczka, której trzeba pilnować.
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WP Database Backup <= 7.11 - Authenticated (Administrator+) OS Command Injection via 'wp_db_exclude_table' Parameter ten wpis
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