جزئیات آسیب‌پذیری

The Click to Chat for WhatsApp plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 4.44 This is due to the greetings_dialog() function building the {url} template placeholder from a sanitize_text_field()-filtered $_SERVER['REQUEST_URI'] on archive pages and then passing the substituted greeting content to do_shortcode() in the greetings-1 and greetings-2 templates, without stripping shortcode delimiters. Because wp_kses() runs against main_content BEFORE the {url} substitution, the attacker-controlled URL bytes reach do_shortcode() unfiltered. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes registered by WordPress core, the active theme, or any other plugin (e.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/cf625e34-1f51-42a3-8daa-a5188dea226e?source=cve
• https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.44/new/inc/greetings/greetings-1.php#L22
• https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.44/new/inc/greetings/greetings-2.php#L18
• https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.44/new/inc/greetings/class-ht-ctc-chat-greetings.php#L111
• https://plugins.trac.wordpress.org/browser/click-to-chat-for-whatsapp/tags/4.44/new/inc/greetings/class-ht-ctc-chat-greetings.php#L224
• https://plugins.trac.wordpress.org/changeset/3716433/click-to-chat-for-whatsapp/trunk/new/inc/greetings/greetings-1.php