CVE-2026-2512
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.
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/simple-embed-code/trunk/includes/add-embeds.php#L20
- https://plugins.trac.wordpress.org/browser/simple-embed-code/trunk/includes/add-embeds.php#L84
- https://plugins.trac.wordpress.org/browser/simple-embed-code/trunk/includes/secure.php#L25
- https://plugins.trac.wordpress.org/changeset/3482994/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/375ed04b-a3cb-4e60-83c8-18bff583aaf4?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.