Pie Register <= 3.8.1.2 - Missing Authorization to Arbitrary User Deletion
Strategic Overview
- Status
- Patched in 3.8.1.3
- Affected Version
<= 3.8.1.2- CVSS
- 6.5Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2022-4024
At a glance
CVE-2022-4024 is a medium-severity Missing Authorization vulnerability in the Pie Register WordPress plugin, affecting versions <= 3.8.1.2. 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 3.8.1.3; sites on affected versions should update now. Disclosed November 2022, reported by cydave.
Vulnerability Overview
The Pie Register plugin for WordPress is vulnerable to arbitrary user deletion in versions up to, and including, 3.8.1.3. This is due to missing validation and capability checking on code that handles the deletion of users. This makes it possible for unauthenticated attackers to delete arbitrary users.
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-862: Missing Authorization
Reaching this weakness in Pie Register <= 3.8.1.2 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Pie Register the fix is 3.8.1.3: builds <= 3.8.1.2 are affected, anything from 3.8.1.3 onward is not.
Remediation
Update to version 3.8.1.3, 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: Pie Register 3.8.1.3 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Same weakness class
- 8.8CVE-2024-6069: Pie Register - Basic Authenticated (Subscriber+)
CVE-2024-6069 - 7.3CVE-2014-8802: Pie Register <= 2.0.13 Missing Authorization
CVE-2014-8802 - 6.5CVE-2026-3571: Pie Register Unauthenticated Registration Form Status
CVE-2026-3571 - 5.3CVE-2026-10530: Pie Register Missing Authorization
CVE-2026-10530
Other vulnerabilities in Pie Register – User Registration, Profiles & Content Restriction
- 9.8CVE-2024-27957: Pie Register <= 3.8.3.2 Arbitrary File Upload
CVE-2024-27957 - 9.8CVE-2025-34077: Pie Register <= 3.7.1.4 Authentication Bypass
CVE-2025-34077 - 9.8CVE-2021-24731: Pie Register <= 3.7.1.5 SQL Injection
CVE-2021-24731 - 9.8CVE-2019-15659: Pie Register SQL Injection
CVE-2019-15659 - 9.8CVE-2018-10969: Pie Register <= 3.0.9 SQL Injection
CVE-2018-10969 - 9.8Registration Forms Authentication Bypass
- 9.8Pie Register 2.0.14-2.0.15 SQL Injection
- 8.1CVE-2021-24647: Pie Register <= 3.7.1.5 Authentication Bypass
CVE-2021-24647
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C