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CVE-2026-6809
Description
The Social Post Embed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Threads embed handler in all versions up to, and including, 2.0.1. This is due to insufficient input sanitization and output escaping on the user-supplied URL. 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 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NReferences
- https://plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.1/inc/threads.php#L64
- https://plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.2/inc/threads.php#L49
- https://plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.2/inc/threads.php#L50
- https://plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.2/inc/threads.php#L61
- https://plugins.trac.wordpress.org/browser/social-post-embed/trunk/inc/threads.php#L64
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4c16841d-8878-4328-a5dc-113d213cca33?source=cve