CVE-2026-6072
Oliver POS <= 2.4.2.6 - Unauthenticated Authorization Bypass Through User-Controlled Key to 'OliverAuth' Header
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
oliverpos · Oliver POS – A WooCommerce Point of Sale (POS)
- affected ≤ 2.4.2.6
References (11)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ca6aa922-9c58-445c-b88a-3d1d1c95102c?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/trunk/includes/class-pos-bridge.php#L1679 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/tags/2.4.2.6/includes/class-pos-bridge.php#L1679 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/trunk/includes/class-pos-bridge.php#L1677 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/tags/2.4.2.6/includes/class-pos-bridge.php#L1677 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/trunk/includes/class-pos-bridge-user.php#L170 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/tags/2.4.2.6/includes/class-pos-bridge-user.php#L170 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/trunk/includes/class-pos-bridge-user.php#L195 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/tags/2.4.2.6/includes/class-pos-bridge-user.php#L195 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/trunk/includes/class-pos-bridge-user.php#L231 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/oliver-pos/tags/2.4.2.6/includes/class-pos-bridge-user.php#L231 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-6072)Record last updated .