CVEvulnerability
CVE-2026-85679
7.2 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-10-01
- Last modified
- 2026-10-03
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
Description
The Extendify plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'styles.blocks' Block Type Key in all versions up to, and including, 3.1.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is possible because registerIncoming() is hooked on rest_request_before_callbacks and runs before WordPress evaluates the route's permission_callback, meaning any unauthenticated POST, PUT, or PATCH request to a /wp/v2/global-styles route can trigger the vulnerable code path.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://plugins.trac.wordpress.org/browser/extendify/tags/3.1.6/app/Shared/Services/BlockStyleVariations.php#L29 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/extendify/tags/3.1.6/app/Shared/Services/BlockStyleVariations.php#L37 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/extendify/tags/3.1.6/app/Shared/Services/BlockStyleVariations.php#L62 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/extendify/tags/3.1.6/app/Shared/Services/BlockStyleVariations.php#L75 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/extendify/tags/3.1.6/bootstrap.php#L112 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/changeset/3688833/extendify/trunk/app/Shared/Services/BlockStyleVariations.php plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3688833%40extendify%2Ftags%2F3.2.0&old=3669317%40extendify%2Ftags%2F3.1.6 plugins.trac.wordpress.org
- https://www.wordfence.com/threat-intel/vulnerabilities/id/38024680-2d99-4af0-b805-6fd718a1d338?source=cve www.wordfence.com