Database Cleaner <= 1.4.7 - Authenticated (Administrator+) SQL Injection via Table Name
- ID
- WPSEC-2026-2174
- Plugin
- Database Cleaner: Cleanup, Optimization & Repair (database-cleaner)
- Affected
- all versions before 1.4.8
- Remediation
- Update to 1.4.8 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
- Weakness
- CWE-89
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-31
- Attack surface
- Database Cleaner on WPSec AttackSurface
- Fix released
- Published
Description
The Database Cleaner plugin for WordPress is vulnerable to SQL Injection via the 'tables' parameter of the delete_tables REST endpoint in all versions up to, and including, 1.4.7. This is due to the table name being interpolated unescaped inside backticks in a DROP TABLE query, and to a deletable-table check that only recognises core tables carrying the current site's prefix. This makes it possible for authenticated attackers with administrator-level access to break out of the identifier quoting with a crafted name and drop arbitrary database tables, including WordPress core tables. On multisite networks, site administrators can drop the network-wide tables (such as users and usermeta) and the tables of other sites in the network, causing data loss across the whole network.
References
- https://wpsec.com/vuln/WPSEC-2026-2174/
- https://plugins.svn.wordpress.org/database-cleaner/tags/1.4.8/
- https://wordpress.org/plugins/database-cleaner/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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