Description

The Gutenberg Blocks with AI by Kadence WP plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.6.1. This is due to a missing capability check in the `process_image_data_ajax_callback()` function which handles the `kadence_import_process_image_data` AJAX action. The function's authorization check via `verify_ajax_call()` only validates `edit_posts` capability but fails to check for the `upload_files` capability. This makes it possible for authenticated attackers, with Contributor-level access and above, to upload arbitrary images from remote URLs to the WordPress Media Library, bypassing the standard WordPress capability restriction that prevents Contributors from uploading files.

Weaknesses 1

References 4

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.5.32/includes/class-kadence-blocks-prebuilt-library.php#L1177
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.5.32/includes/class-kadence-blocks-prebuilt-library.php#L789
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3454881%40kadence-blocks%2Ftrunk&old=3453204%40kadence-blocks%2Ftrunk&sfp_email=&sfph_mail=
• wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/9c06e0a9-a13a-4cee-a1a5-c43c114b2dbf?source=cve

Remediation