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.
References6
- plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.1…
- plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.2…
- plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.2…
- plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.2…
- plugins.trac.wordpress.org/browser/social-post-embed/trunk/inc/…
- www.wordfence.com/threat-intel/vulnerabilities/id/4c16841d-8878…
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 9 · as of 13 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.