oliverpos Oliver POS Plugin up to 2.4.2.6 on WordPress POS API Endpoint /wp-json/pos-bridge/ oliver_pos_rest_authentication authorization

Summaryinfo

A vulnerability marked as problematic has been reported in oliverpos Oliver POS Plugin up to 2.4.2.6 on WordPress. The impacted element is the function oliver_pos_rest_authentication of the file /wp-json/pos-bridge/ of the component POS API Endpoint. Performing a manipulation results in authorization. This vulnerability is reported as CVE-2026-6072. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in oliverpos Oliver POS Plugin up to 2.4.2.6 on WordPress. It has been classified as problematic. This affects the function oliver_pos_rest_authentication of the file /wp-json/pos-bridge/ of the component POS API Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Oliver POS – A WooCommerce Point of Sale (POS) plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in all versions up to and including 2.4.2.6. The plugin protects its entire /wp-json/pos-bridge/* REST API namespace through the oliver_pos_rest_authentication() permission callback, which uses a loose PHP comparison (==) to compare the attacker-supplied 'OliverAuth' header value against the 'oliver_pos_authorization_token' option. On fresh installations where the admin has not yet completed the connection flow, this option is unset (get_option returns false). Due to PHP's type juggling, the loose comparison '0' == false evaluates to true, allowing an unauthenticated attacker to bypass authentication by sending 'OliverAuth: 0'. This grants full access to all POS API endpoints, enabling attackers to read user data (including administrator details), update user profiles (including email addresses), and delete non-admin users. An admin account email reset can lead to site takeover.

The weakness was disclosed by Hunter Jensen. It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2026-6072 since 04/10/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.4.2.6 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• oliverpos

Name

• Oliver POS Plugin

Version

• 2.4.2.0
• 2.4.2.1
• 2.4.2.2
• 2.4.2.3
• 2.4.2.4
• 2.4.2.5
• 2.4.2.6

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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