EAN for WooCommerce <= 4.8.9 - Authenticated (Shop Manager+) Arbitrary Options Update
Strategic Overview
- Status
- Patched in 4.9.0
- Affected Version
<= 4.8.9- CVSS
- 7.2High
- Weakness type
- CWE-20 · Improper Input Validation
- CVE
CVE-2024-34370
At a glance
CVE-2024-34370 is a high-severity Improper Input Validation vulnerability in the EAN Barcode Generator for WooCommerce WordPress plugin, affecting versions <= 4.8.9. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Shop Manager level or above. The issue is fixed in version 4.9.0; sites on affected versions should update now. Disclosed May 2024, reported by Majed Refaea.
Vulnerability Overview
The EAN for WooCommerce plugin for WordPress is vulnerable to arbitrary options updates n all versions up to, and including, 4.8.9. This is due to insufficient restrictions on option values that can be supplied. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to update arbitrary options that can be leveraged for privilege escalation.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-20: Improper Input Validation
Reaching this weakness in EAN Barcode Generator for WooCommerce <= 4.8.9 takes an account at Shop Manager level or above. Improper input validation means the application accepts input without confirming it has the form, type or range the code downstream assumes.
The concrete impact depends on where the unvalidated value lands, which is why records in this class range from cosmetic bugs to full compromise. For EAN Barcode Generator for WooCommerce the fix is 4.9.0: builds <= 4.8.9 are affected, anything from 4.9.0 onward is not.
Remediation
Update to version 4.9.0, or a newer patched version
How does WordSec protect against this?
An attacker needs Shop Manager access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: EAN Barcode Generator for WooCommerce 4.9.0 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in EAN Barcode Generator for WooCommerce: UPC, ISBN & GTIN Inventory
- 6.4CVE-2025-48249: EAN for WooCommerce <= 5.4.6 Stored XSS
CVE-2025-48249 - 6.4CVE-2023-6892: EAN for WooCommerce <= 4.9.2 Stored XSS
CVE-2023-6892 - 6.4CVE-2023-0062: EAN for WooCommerce <= 4.4.2 Stored XSS
CVE-2023-0062 - 4.3CVE-2025-22673: EAN for WooCommerce <= 5.3.5 Missing Authorization
CVE-2025-22673 - 4.3CVE-2023-6897: EAN for WooCommerce IDOR
CVE-2023-6897
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