CVE-2023-0586: Aioseo All In One Seo

Medium severity, CVSS 5.4. EPSS: 2.5% chance of exploitation in the next 30 days.

The All in One SEO Pack plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple parameters in versions up to, and including, 4.2.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with Contributor+ role to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Aioseo All In One Seo: up to and including 4.2.9

Published 2023-02-24. Last modified 2026-06-17.