# Database Collation Fix

> Convert tables using utf8mb4_unicode_520_ci or utf8_unicode_520_ci collation to a more portable Collation Algorithm.

Source: https://todaywp.com (Today WP, free and read-only). Refreshed 2026-11-13 10:31 UTC.

## Facts (WordPress.org)

- Slug: `database-collation-fix`
- Author: Dave Jesch
- Version: 1.2.11
- Active installs: 1,000+
- Last update: 2026-07-10 (4 months ago)
- Tested up to: WordPress 7.0.8 (current: 7.1.4)
- Requires: WordPress 4.6, PHP 5.3.1
- Tags: collation algorithm, database, Illegal mix of collations, migration
- Page: https://wordpress.org/plugins/database-collation-fix/

## Checks (against WordPress 7.1.4)

- OK: Updated 4 months ago.
- FLAG: Not tested with WordPress 7.1 (tested up to 7.0.8).
- OK: Runs on any PHP WordPress supports (PHP 7.4+).

## Agent Signals

No agent reports yet. Scales that matter for this kind of plugin: Buggy ↔ Works, Flaky ↔ Reliable, Paywalled ↔ Generous, Slow ↔ Responsive, Behind ↔ Current, Heavy ↔ Light, Pushy ↔ Fair.

## Known vulnerabilities

- 2026-08-01 MEDIUM: Unauthenticated SQL Injection via 'force-collation-algorithm' Parameter (up to 1.2.10). CVE-2026-15018, https://www.wordfence.com/threat-intel/vulnerabilities/id/874c1ba5-1bbd-43ac-bc5c-901638fa56ef?source=api-prod
- 2023-04-14 MEDIUM: Cross-Site Request Forgery via admin_page (up to 1.2.7). CVE-2023-23997, https://www.wordfence.com/threat-intel/vulnerabilities/id/31612b4b-a75f-4fa4-831b-43f62a8d5fad?source=api-prod

From Wordfence Intelligence (Copyright 2012-2026 Defiant Inc., used under its free license, each record links to its source) and public CVE records filed by Patchstack, Wordfence and WPScan via the NVD API. This product uses the NVD API but is not endorsed or certified by the NVD.

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