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Vulnerabilities and Security Researches

Yoast SEO, CVE-2026-1293

CVE, Research URL

CVE-2026-1293

Application

Yoast SEO

Published on
Feb 06, 2026
Research Description
The Yoast SEO – Advanced SEO with real-time guidance and built-in AI plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the `yoast-schema` block attribute in all versions up to, and including, 26.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected versions
max 26.9.
Status
vulnerable