Oliver POS <= 2.4.2.6 - Unauthenticated Authorization Bypass Through User-Controlled Key to 'OliverAuth' Header

Wordfence Intelligence   >   Vulnerability Database   >   Oliver POS <= 2.4.2.6 - Unauthenticated Authorization Bypass Through User-Controlled Key to 'OliverAuth' Header
6.5
Authorization Bypass Through User-Controlled Key
CVE CVE-2026-6072
CVSS 6.5 (Medium)
Publicly Published May 19, 2026
Last Updated May 28, 2026
Researcher Hunter Jensen (skid)

Description

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.

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Vulnerability Details for Oliver POS – WooCommerce POS for iPhone, iPad & Android

Oliver POS – WooCommerce POS for iPhone, iPad & Android

Software Type Plugin
Software Slug oliver-pos (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.5.4, or a newer patched version
Affected Version
  • <= 2.4.2.6
Patched Version
  • 4.5.4

Recent vulnerabilities in Oliver POS – WooCommerce POS for iPhone, iPad & Android

Oliver POS – A WooCommerce Point of Sale (POS) <= 2.4.2.3 - Sensitive Information Exposure to Privilege Escalation
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CVE-2024-13513
Feb 14, 2025
Researcher: Krzysztof Zając
Oliver POS – A WooCommerce Point of Sale (POS) <= 2.4.1.8 - Cross-Site Request Forgery
6.3
CVE-2024-1954
Feb 27, 2024
Researcher: Francesco Carlucci
Oliver POS – A WooCommerce Point of Sale (POS) <= 2.4.2.1 - Missing Authorization
7.3
CVE-2024-0702
Feb 19, 2024
Researcher: Francesco Carlucci
# Title CVE ID CVSS Researchers Date
1 Oliver POS – A WooCommerce Point of Sale (POS) <= 2.4.2.3 - Sensitive Information Exposure to Privilege Escalation CVE-2024-13513 9.8 Krzysztof Zając February 14, 2025
2 Oliver POS – A WooCommerce Point of Sale (POS) <= 2.4.1.8 - Cross-Site Request Forgery CVE-2024-1954 6.3 Francesco Carlucci February 27, 2024
3 Oliver POS – A WooCommerce Point of Sale (POS) <= 2.4.2.1 - Missing Authorization CVE-2024-0702 7.3 Francesco Carlucci February 19, 2024
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