Barcode Scanner (+Mobile App) <= 1.11.0 - Unauthenticated Privilege Escalation via Insecure Token Authentication
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.
Summary
The Barcode Scanner (+Mobile App) – Inventory manager, Order fulfillment system, POS (Point of Sale) plugin for WordPress is vulnerable to privilege escalation via insecure token-based authentication in all versions up to, and including, 1.11.0. This is due to the plugin trusting a user-supplied Base64-encoded user ID in the token parameter to identify users, leaking valid authentication tokens through the 'barcodeScannerConfigs' action, and lacking meta-key restrictions on the 'setUserMeta' action. This makes it possible for unauthenticated attackers to escalate their privileges to that of an administrator by first spoofing the admin user ID to leak their authentication token, then using that token to update any user's 'wp_capabilities' meta to gain full administrative access.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| UkrSolution | Barcode Scanner (+Mobile App) – Inventory manager, Order fulfillment system, POS (Point of Sale) | up to 1.11.0 | — | No fix listed | CNA |
- Barcode Scanner (+Mobile App) – Inventory manager, Order fulfillment system, POS (Point of Sale) VendorUkrSolution Affected up to 1.11.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4880
- 2026-10-03 Alias added: GHSA-p8x8-wgf2-jrjm
- 2026-10-25 EPSS moved to the below the 50th percentile
References
Other 3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a213e844-a0d3-4123-9f72-caef7702804c?source=cve
- https://plugins.trac.wordpress.org/browser/barcode-scanner-lite-pos-to-manage-products-inventory-and-orders/trunk/src/Core.php?rev=3391688#L498
- https://plugins.trac.wordpress.org/changeset/3506824/barcode-scanner-lite-pos-to-manage-products-inventory-and-orders#file30
More UkrSolution vulnerabilities
- TI-2023-28649 WordPress Barcode Scanner with Inventory & Order Manager Plugin <= 1.5.1 is vulnerable to Arbitrary File Upload CVSS 3.1CRITICAL 10.0
- TI-2024-22152 Missing authorization in UkrSolution Barcode Scanner with Inventory & Order Manager CVSS 3.1CRITICAL 9.1
- TI-2024-22154 Improper privilege management in UkrSolution Barcode Scanner with Inventory & Order… CVSS 3.1CRITICAL 9.8
- TI-2023-28643 WordPress Barcode Scanner with Inventory & Order Manager Plugin <=1.5.1 is vulnerable to SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2024-25942 WordPress Barcode Scanner and Inventory manager plugin <= 1.6.1 - SQL Injection vulnerability CVSS 3.1HIGH 8.8
- TI-2024-28962 Missing authorization in UkrSolution Print Barcode Labels for your WooCommerce… CVSS 3.1HIGH 8.8
Sources
- CVE-2026-4880 · CVE Program
- CVE-2026-4880 · NVD
- FIRST EPSS
- GHSA-p8x8-wgf2-jrjm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences