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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
dartiss Code Embed
Default version status: unaffected
0 to ≤ 2.5.1affected
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/375ed04b-a3cb-4e60-83c8-18bff583aaf4?source=cve ↗
- 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/add-embeds.php#L20 ↗
- https://plugins.trac.wordpress.org/browser/simple-embed-code/trunk/includes/secure.php#L25 ↗
- https://plugins.trac.wordpress.org/changeset/3482994/ ↗