CVE-2026-17581
Vulnérabilité élevée dans WCPOS – Point of Sale (POS) plugin for WooCommerce (kilbot)
Description
The WCPOS – Point of Sale (POS) plugin for WooCommerce plugin for WordPress is vulnerable to Code Injection via the 'thermal' Template Engine in all versions up to, and including, 1.9.14 due to the Receipt_Renderer_Factory dispatching templates with the 'thermal' engine to the Legacy_Php_Renderer instead of a safe thermal-specific renderer. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to inject arbitrary PHP code into a template post that is subsequently written to a temporary file and executed via PHP's include(), resulting in remote code execution on the server. This requires the attacker to have Shop Manager-level access or above, as the template save path enforces a wcpos_template_settings nonce and the manage_woocommerce_pos capability check.
Gravité et risque d'exploitation
CVE-2026-17581 obtient un score CVSS de 7.2/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 1.37 %, ce qui la place devant 71.5 % des CVE référencées.
Que faire ?
- Vérifiez si WCPOS – Point of Sale (POS) plugin for WooCommerce (versions 0, <=1.9.14) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- https://www.wordfence.com/threat-intel/vulnerabilities/id/cf3efda0-8609-4a75-a00b-735b49ef260b?source=cve
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.10/includes/Services/Receipt_Renderer_Factory.php#L25
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.11/includes/Templates/Renderers/Legacy_Php_Renderer.php#L42
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.11/includes/Services/Receipt_Renderer_Factory.php#L25
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.11/includes/Admin/Templates/Single_Template.php#L456
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.11/includes/Templates.php#L238
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.11/includes/Templates/Receipt.php#L251
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.10/includes/Templates/Renderers/Legacy_Php_Renderer.php#L42
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.10/includes/Admin/Templates/Single_Template.php#L456
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.10/includes/Templates.php#L238
- https://plugins.trac.wordpress.org/browser/woocommerce-pos/tags/1.9.10/includes/Templates/Receipt.php#L251
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3634267%40woocommerce-pos&new=3634267%40woocommerce-pos
