CVE-2026-15414
Vulnérabilité élevée dans Subscriptions for WooCommerce (wpswings)
Description
The Subscriptions for WooCommerce plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 2.0.0. This is due to the `save_meta_boxes()` function persisting the `_wps_plan_user_role` membership plan meta from `$_POST` without an allowlist that excludes privileged roles — the only validations applied, `sanitize_key()` and `wp_roles()->is_role()`, both accept `'administrator'` as a valid value, and the UI's `disabled` attribute on the role dropdown is a client-side-only control trivially bypassed via DevTools or a direct POST request; additionally, because the `wps_membership_plan` custom post type is registered with `capability_type => 'post'`, any user who can edit posts satisfies the `current_user_can('edit_post', $post_id)` guard in `save_meta_boxes()`. This makes it possible for authenticated attackers, with Contributor-level access and above, to escalate their privileges to Administrator by storing `'administrator'` as the role granted on membership acquisition, which the Pro companion plugin then applies via `add_role()` during membership lifecycle events. Successful exploitation requires the Subscriptions for WooCommerce Pro companion plugin to be active, as it is the component that reads the stored `_wps_plan_user_role` meta via `get_post_meta()` and calls `add_role()` to apply the role during membership lifecycle events.
Gravité et risque d'exploitation
CVE-2026-15414 obtient un score CVSS de 8.8/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.81 %, ce qui la place devant 56.1 % des CVE référencées.
Que faire ?
- Vérifiez si Subscriptions for WooCommerce (versions <=2.0.0, 0) 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/195f86a5-e3dc-4414-bbe3-dea312bf30a9?source=cve
- https://plugins.trac.wordpress.org/browser/subscriptions-for-woocommerce/tags/2.0.0/includes/membership/class-wps-membership-plan-cpt.php#L483
- https://plugins.trac.wordpress.org/browser/subscriptions-for-woocommerce/tags/2.0.0/includes/membership/class-wps-membership-plan-cpt.php#L477
- https://plugins.trac.wordpress.org/browser/subscriptions-for-woocommerce/tags/2.0.0/includes/membership/class-wps-membership-plan-cpt.php#L275
- https://plugins.trac.wordpress.org/browser/subscriptions-for-woocommerce/tags/2.0.0/admin/partials/membership/meta-box-plan-details.php#L102
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3624543%40subscriptions-for-woocommerce&new=3624543%40subscriptions-for-woocommerce