جزئیات آسیب‌پذیری

The Platnosci Online Blue Media (Autopay) plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 5.0.0 via the 'bm_woocommerce_css_editor_content' POST parameter. This is due to the Css_Editor::handle_save() method being wired to the WordPress 'init' hook by Settings_Manager::init_once() with no capability check, no nonce verification, and no sanitization on the input — the raw $_POST value is written to the 'woocommerce_bluemedia_settings' option via update_option(), then later echoed directly inside a <style> block on the WooCommerce checkout page by Css_Frontend::print_to_wp_head() with no output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page (the checkout page).

• https://www.wordfence.com/threat-intel/vulnerabilities/id/f49ccf0f-99ec-410f-8bf0-2f15d8fd578f?source=cve
• https://plugins.trac.wordpress.org/browser/platnosci-online-blue-media/tags/5.0.0/src/Domain/Service/Custom_Styles/Css_Editor.php#L96
• https://plugins.trac.wordpress.org/browser/platnosci-online-blue-media/tags/5.0.0/src/Domain/Service/Custom_Styles/Css_Frontend.php#L17
• https://plugins.trac.wordpress.org/browser/platnosci-online-blue-media/tags/5.0.0/src/Domain/Service/Custom_Styles/Css_Editor.php#L98
• https://plugins.trac.wordpress.org/browser/platnosci-online-blue-media/tags/5.0.0/src/Domain/Service/Settings/Settings_Manager.php#L94
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3636306%40platnosci-online-blue-media&new=3636306%40platnosci-online-blue-media