Description
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).
References6
- plugins.trac.wordpress.org/browser/platnosci-online-blue-media/…
- plugins.trac.wordpress.org/browser/platnosci-online-blue-media/…
- plugins.trac.wordpress.org/browser/platnosci-online-blue-media/…
- plugins.trac.wordpress.org/browser/platnosci-online-blue-media/…
- plugins.trac.wordpress.org/changeset?reponame=&old=3636306%40pl…
- www.wordfence.com/threat-intel/vulnerabilities/id/f49ccf0f-99ec…
Metrics
- CVSS 3.1
-
7.2
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 37 · as of 11 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.