جزئیات آسیب‌پذیری

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The Content Egg plugin for WordPress is vulnerable to unauthorized modification of data due to a missing per-post capability check on the ajaxUpdateProducts() function in versions up to, and including, 12.0.0. The handler verifies a static nonce ('contentegg_metabox') and the generic 'edit_posts' capability, but trusts the attacker-supplied $_POST['post_id'] verbatim and never calls current_user_can('edit_post', $post_id) — the per-object check that its sibling save_post handler saveMeta() correctly performs. This makes it possible for authenticated attackers, with contributor-level access and above, to modify Content Egg product data (_cegg_data_*) and update-timestamp post meta on arbitrary posts, including those owned by administrators.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/bc503fac-1ae6-400a-b19d-d88f0016b8aa?source=cve
• https://plugins.trac.wordpress.org/browser/content-egg/tags/12.0.0/application/admin/EggMetabox.php#L436
• https://plugins.trac.wordpress.org/browser/content-egg/tags/12.0.0/application/admin/EggMetabox.php#L38
• https://plugins.trac.wordpress.org/browser/content-egg/tags/12.0.0/application/components/ContentManager.php#L1027
• https://plugins.trac.wordpress.org/browser/content-egg/tags/12.0.0/application/components/ContentManager.php#L1075
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3773366%40content-egg&new=3773366%40content-egg