The User Registration plugin for WordPress is vulnerable to Stored Cross-Site Scripting via field settings in versions up to, and including, 2.3.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrative-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
CVE-2023-23987 is a medium severity with CVSS 5.5 Stored Cross-Site Scripting issue affecting the Plugin User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder. It affects Versions up to 2.3.0 and is fixed in 2.3.1.
CVE-2023-23987 is tracked for the Plugin User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder as medium severity with CVSS 5.5. The affected range is Versions up to 2.3.0. Update User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder to 2.3.1 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
user-registration
View on wordpress.org
|
| CVE | CVE-2023-23987 |
| Patched Versions |
2.3.1
|
| Affected Versions |
Versions up to 2.3.0
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
User Registration <= 3.0.2 - Authenticated (Subscriber+) Arbitrary File Upload
User Registration & Membership <= 5.1.2 - Unauthenticated Privilege Escalation via Membership Registration
User Registration & Membership <= 4.1.1 - Unauthenticated Privilege Escalation
User Registration – Custom Registration Form, Login Form, and User Profile WordPress Plugin <= 3.1.5 - Missing Authorization to Authenticated (Subscriber+) Privilege Escalation
User Registration <= 3.0.1 - Authenticated (Subscriber+) PHP Object Injection
User Registration <= 2.2.4 - Authenticated (Subscriber+) Arbitrary File Upload
User Registration & Membership <= 5.1.2 - Authentication Bypass
User Registration & Membership <= 4.1.2 - Authentication Bypass
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