Description
The RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.1.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to create and execute RSS import jobs, purge (force-delete) all posts associated with any import job, clear import error logs, and enumerate taxonomy terms and post meta_key names. The nonce required to reach these sub-handlers is leaked to any user with the edit_posts capability via the feedzyjs localized script injected into the block editor, meaning no privileged nonce theft or separate exploit step is required for Contributor-level users.
References
https://www.wordfence.com/threat-intel/vulnerabilities/id/e495c215-2e01-4a37-aca3-99a067c46791?source=cve
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3552062%40feedzy-rss-feeds&new=3552062%40feedzy-rss-feeds&sfp_email=&sfph_mail=
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/gutenberg/feedzy-rss-feeds-gutenberg-block.php#L78
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/feedzy-rss-feeds.php#L241
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/admin/feedzy-rss-feeds-import.php#L4184
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/admin/feedzy-rss-feeds-import.php#L4090
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/admin/feedzy-rss-feeds-import.php#L3891
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/admin/feedzy-rss-feeds-import.php#L3718
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/admin/feedzy-rss-feeds-import.php#L1436
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/admin/feedzy-rss-feeds-import.php#L1400
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/admin/feedzy-rss-feeds-import.php#L1365
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.5/includes/admin/feedzy-rss-feeds-import.php#L1256
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/gutenberg/feedzy-rss-feeds-gutenberg-block.php#L78
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/feedzy-rss-feeds.php#L241
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/admin/feedzy-rss-feeds-import.php#L4184
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/admin/feedzy-rss-feeds-import.php#L4090
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/admin/feedzy-rss-feeds-import.php#L3891
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/admin/feedzy-rss-feeds-import.php#L3718
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/admin/feedzy-rss-feeds-import.php#L1436
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/admin/feedzy-rss-feeds-import.php#L1400
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/admin/feedzy-rss-feeds-import.php#L1365
https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.1.2/includes/admin/feedzy-rss-feeds-import.php#L1256
