CVE-2026-4880: CWE-269 Improper Privilege Management in ukrsolution Barcode Scanner (+Mobile App) – Inventory manager, Order fulfillment system, POS (Point of Sale)
CVE-2026-4880 is a critical privilege escalation vulnerability in the ukrsolution Barcode Scanner (+Mobile App) plugin for WordPress, affecting all versions up to 1. 11. 0. The vulnerability arises from insecure token-based authentication that trusts a user-supplied Base64-encoded user ID, leaking valid authentication tokens and lacking proper meta-key restrictions. This allows unauthenticated attackers to spoof an administrator user ID, obtain an admin authentication token, and then escalate privileges by modifying any user's capabilities to gain full administrative access.
AI Analysis
Technical Summary
The Barcode Scanner (+Mobile App) plugin for WordPress suffers from improper privilege management (CWE-269) due to insecure handling of authentication tokens. The plugin trusts a Base64-encoded user ID supplied by users in the token parameter, which can be exploited to leak valid authentication tokens via the 'barcodeScannerConfigs' action. Additionally, the absence of meta-key restrictions on the 'setUserMeta' action enables attackers to update user capabilities arbitrarily. An unauthenticated attacker can spoof the admin user ID to retrieve the admin token and then use it to escalate privileges to administrator level, compromising the system fully.
Potential Impact
Successful exploitation results in unauthenticated attackers gaining full administrative privileges on the affected WordPress site using the vulnerable plugin. This can lead to complete system compromise, including unauthorized access, data manipulation, and control over site functionality. The CVSS 3.1 base score is 9.8, reflecting critical impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, it is recommended to disable or remove the vulnerable plugin to prevent exploitation. Monitor vendor communications for updates and apply official fixes promptly once available.
CVE-2026-4880: CWE-269 Improper Privilege Management in ukrsolution Barcode Scanner (+Mobile App) – Inventory manager, Order fulfillment system, POS (Point of Sale)
Description
CVE-2026-4880 is a critical privilege escalation vulnerability in the ukrsolution Barcode Scanner (+Mobile App) plugin for WordPress, affecting all versions up to 1. 11. 0. The vulnerability arises from insecure token-based authentication that trusts a user-supplied Base64-encoded user ID, leaking valid authentication tokens and lacking proper meta-key restrictions. This allows unauthenticated attackers to spoof an administrator user ID, obtain an admin authentication token, and then escalate privileges by modifying any user's capabilities to gain full administrative access.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Barcode Scanner (+Mobile App) plugin for WordPress suffers from improper privilege management (CWE-269) due to insecure handling of authentication tokens. The plugin trusts a Base64-encoded user ID supplied by users in the token parameter, which can be exploited to leak valid authentication tokens via the 'barcodeScannerConfigs' action. Additionally, the absence of meta-key restrictions on the 'setUserMeta' action enables attackers to update user capabilities arbitrarily. An unauthenticated attacker can spoof the admin user ID to retrieve the admin token and then use it to escalate privileges to administrator level, compromising the system fully.
Potential Impact
Successful exploitation results in unauthenticated attackers gaining full administrative privileges on the affected WordPress site using the vulnerable plugin. This can lead to complete system compromise, including unauthorized access, data manipulation, and control over site functionality. The CVSS 3.1 base score is 9.8, reflecting critical impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, it is recommended to disable or remove the vulnerable plugin to prevent exploitation. Monitor vendor communications for updates and apply official fixes promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-03-26T07:10:23.272Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e01ffb82d89c981fa83038
Added to database: 4/15/2026, 11:32:11 PM
Last enriched: 4/15/2026, 11:46:47 PM
Last updated: 4/16/2026, 1:46:58 AM
Views: 10
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