Oliver POS <= 2.4.2.6 — Unauthenticated Authorization Bypass Through User-Controlled Key to 'OliverAuth' Header
CVE-2026-6072Published · Updated Action summary
Affected: ≤2.4.2.6Update to 4.5.4 or newer
All remediation steps- Severity
- Medium6.5
- CVSS
- 6.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:HAttack complexity- High
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:LIntegrity- Low
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Oliver POS – WooCommerce POS for iPhone, iPad & Android oliver-pos
- Affected≤ 2.4.2.6
- Patched in4.5.4
Update to 4.5.4 or newer.
You are affected if you run ≤ 2.4.2.6. Version 4.5.4 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Oliver POS – WooCommerce POS for iPhone, iPad & Android.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 4.5.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Oliver POS – WooCommerce POS for iPhone, iPad & Android to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Hunter Jensen (skid).
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Oliver POS – WooCommerce POS for iPhone, iPad & Android
All 4| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Critical9.8 | Sensitive Information Exposure to Privilege Escalation ≤2.4.2.3Update to 2.4.2.4 | CVE-2024-13513 | |
| Medium6.3 | Cross-Site Request Forgery ≤2.4.1.8Update to 2.4.1.9 | CVE-2024-1954 | |
| High7.3 | Missing Authorization ≤2.4.2.0Update to 2.4.2.1 | CVE-2024-0702 |
- Critical9.8Sensitive Information Exposure to Privilege Escalation
≤2.4.2.3Update to 2.4.2.4
- Medium6.3Cross-Site Request Forgery
≤2.4.1.8Update to 2.4.1.9
- High7.3Missing Authorization
≤2.4.2.0Update to 2.4.2.1
Timeline
CVE published
Severity medium, CVSS 6.5
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.