CVE-2026-1293
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…
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/26.8/inc/class-wpseo-utils.php#L915
- https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/26.8/src/generators/schema-generator.php#L188
- https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/26.8/src/presenters/schema-presenter.php#L49
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8b2e7c2d-ed2f-439b-9cee-f2e5d46121b6?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.