WooCommerce Subscriptions <= 5.1.2 - Missing Authorization to Insecure Direct Object Reference
Strategic Overview
- Status
- Patched in 5.1.3
- Affected Plugin
- WooCommerce Subscription
- Affected Version
<= 5.1.2- CVSS
- 6.5Medium
- Weakness type
- CWE-639 · Authorization Bypass Through User-Controlled Key
- CVE
CVE-2023-35914
At a glance
CVE-2023-35914 is a medium-severity Authorization Bypass Through User-Controlled Key vulnerability in the WooCommerce Subscription WordPress plugin, affecting versions <= 5.1.2. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 5.1.3; sites on affected versions should update now. Disclosed June 2023, reported by Rafie Muhammad.
Vulnerability Overview
The WooCommerce Subscriptions plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on an unknown unction in versions up to, and including, 5.1.2. This makes it possible for unauthenticated attackers to access or modify information by passing in a user-conttrolled parameter.
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 privileges on the target site, and no interaction from a victim user.
CWE-639: Authorization Bypass Through User-Controlled Key
Reaching this weakness in WooCommerce Subscription <= 5.1.2 takes a caller who can reach the endpoint. Authorization bypass through a user-controlled key, often called insecure direct object reference, means the application looks up a record by an identifier from the request without checking that the caller owns it.
Changing a number in the request is enough to read or modify other users' records, which on commerce and membership sites means customer data. For WooCommerce Subscription the fix is 5.1.3: builds <= 5.1.2 are affected, anything from 5.1.3 onward is not.
Remediation
Update to version 5.1.3, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: WooCommerce Subscription 5.1.3 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in WooCommerce Subscription
- 8.3WooCommerce Subscriptions <= 3.0.2 Cross-Site Request Forgery
- 6.1CVE-2019-18834: WooCommerce Subscriptions < 2.6.3 Stored XSS
CVE-2019-18834 - 5.3CVE-2026-18391: WooCommerce Subscription < 9.1.0 PHP Object Injection
CVE-2026-18391 - 4.3CVE-2023-50850: WooCommerce Subscriptions Missing Authorization
CVE-2023-50850 - 4.3WooCommerce Subscription < 4.6.0 Cross-Site Request Forgery
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