WP-Invoice – Web Invoice and Billing <= 4.1.0 - Insecure Direct Object Reference
Strategic Overview
- Status
- Patched in 4.1.1
- Affected Plugin
- WP-Invoice – Web Invoice and Billing
- Affected Version
<= 4.1.0- CVSS
- 5.3Medium
- Weakness type
- CWE-639 · Authorization Bypass Through User-Controlled Key
- CVE
CVE-2016-11007
At a glance
CVE-2016-11007 is a medium-severity Authorization Bypass Through User-Controlled Key vulnerability in the WP-Invoice WordPress plugin, affecting versions <= 4.1.0. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.1.1; sites on affected versions should update now. Disclosed February 2016, reported by James Golovich.
Vulnerability Overview
The wp-invoice plugin before 4.1.1 for WordPress has incorrect access control over wpi_user_id for invoice retrieval.
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 WP-Invoice <= 4.1.0 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 WP-Invoice the fix is 4.1.1: builds <= 4.1.0 are affected, anything from 4.1.1 onward is not.
Remediation
Update to version 4.1.1, 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: WP-Invoice 4.1.1 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in WP-Invoice – Web Invoice and Billing
- 8.8CVE-2022-1617: WP-Invoice CSRF to Stored Cross-Site Scripting
CVE-2022-1617 - 8.8CVE-2016-11011: WP-Invoice Privilege Escalation
CVE-2016-11011 - 6.5CVE-2016-11006: WP-Invoice Unauthorized Settings Change
CVE-2016-11006 - 5.3CVE-2016-11010: WP-Invoice Missing Authorization
CVE-2016-11010 - 5.3CVE-2016-11009: WP-Invoice Missing Authorization
CVE-2016-11009 - 5.3CVE-2016-11008: WP-Invoice Missing Authorization
CVE-2016-11008
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