Vulnerability Description
The Code Embed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom field meta values in all versions up to, and including, 2.5.1. This is due to the plugin's sanitization function `sec_check_post_fields()` only running on the `save_post` hook, while WordPress allows custom fields to be added via the `wp_ajax_add_meta` AJAX endpoint without triggering `save_post`. The `ce_filter()` function then outputs these unsanitized meta values directly into page content without 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 Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/simple-embed-code/trunk/includes/add-
- https://plugins.trac.wordpress.org/browser/simple-embed-code/trunk/includes/add-
- https://plugins.trac.wordpress.org/browser/simple-embed-code/trunk/includes/secu
- https://plugins.trac.wordpress.org/changeset/3482994/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/375ed04b-a3cb-4e60-83c
FAQ
What is CVE-2026-2512?
CVE-2026-2512 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The Code Embed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom field meta values in all versions up to, and including, 2.5.1. This is due to the plugin's sanitization func...
How severe is CVE-2026-2512?
CVE-2026-2512 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2512?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.