wpswings Subscriptions for WooCommerce Plugin up to 2.0.0 on WordPress wps_membership_plan save_meta_boxes POST privileges management

Summaryinfo

A vulnerability marked as problematic has been reported in wpswings Subscriptions for WooCommerce Plugin up to 2.0.0. Affected by this vulnerability is the function save_meta_boxes of the component wps_membership_plan. This manipulation of the argument POST causes privileges management. This vulnerability is registered as CVE-2026-15414. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in wpswings Subscriptions for WooCommerce Plugin up to 2.0.0. Affected by this vulnerability is the function save_meta_boxes of the component wps_membership_plan. The manipulation of the argument POST with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect integrity. The summary by CVE is:

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.

The advisory is shared at wordfence.com. This vulnerability is known as CVE-2026-15414 since 07/10/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/01/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• wpswings

Name

• Subscriptions for WooCommerce Plugin

Version

• 2.0

CPE 2.3info

• 🔒

CPE 2.2info

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