CVE-2026-98347.2HighCWE-77

CVE-2026-9834: WP Database Backup <= 7.11 - Authenticated (Administrator+) OS Command Injection via 'wp_db_exclude_table' Parameter

databasebackup · WP Database Backup – Unlimited Database & Files Backup by Backup for WP

Affected: databasebackup WP Database Backup – Unlimited Database & Files Backup by Backup for WP · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

2.6%probability of exploitation in the next 30 days

85th percentile

050100

Higher than 85% of scored CVEs

7.2HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

databasebackup · WP Database Backup – Unlimited Database & Files Backup by Backup for WPup to and including 7.11

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Command Injection · Command and Code Injection
Published: July 2026
Band: Possible (1 to 10%), July 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-9834 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.