CVE-2023-40680: Yoast Seo

Medium severity, CVSS 4.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Team Yoast Yoast SEO allows Stored XSS.This issue affects Yoast SEO: from n/a through 21.0.

Affected products

• Yoast Yoast Seo: up to and including 21.0

Published 2023-11-30. Last modified 2026-06-17.