CVE-2023-5228 User Registration < 3.0.4.2 - Admin+ Stored XSS
High-privilege users can inject malicious scripts via unsanitized settings in the User Registration plugin, affecting multisite environments.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-5228?
CVE-2023-5228 is a medium-severity cross-site scripting vulnerability in Unknown User Registration, published on 6 Nov 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The User Registration WordPress plugin before 3.0.4.2 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
Weakness: CWE-79
Which versions are affected by CVE-2023-5228?
It affects 1 product.
Products include Wpeverest User Registration.
How do I fix CVE-2023-5228?
No fix has been published for CVE-2023-5228 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-5228 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-5228 exists.
Other vulnerabilities in Unknown User Registration
- CVE-2023-3342 User Registration <= 3.0.2 - Authenticated (Subscriber+) Arbitrary File Upload
- CVE-2023-3343 User Registration <= 3.0.1 - Authenticated (Subscriber+) PHP Object Injection
- CVE-2022-3912 User Registration < 2.2.4.1 - Subscriber+ Arbitrary File Upload
- CVE-2025-1511 Cross-site scripting in User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder
- CVE-2023-23987 WordPress User Registration Plugin <= 2.3.0 is vulnerable to Cross Site Scripting (XSS)
Sources
Also known as GHSA-cfhf-5qvq-2jgj.