CVE-2023-3343 User Registration <= 3.0.1 - Authenticated (Subscriber+) PHP Object Injection
Authenticated attackers can exploit PHP object injection in the User Registration plugin to potentially execute code or access data if a POP chain exists.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-3343?
CVE-2023-3343 is a high-severity unsafe deserialization vulnerability in wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder, published on 13 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The User Registration plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 3.0.1 via deserialization of untrusted input from the 'profile-pic-url' parameter. This allows authenticated attackers, with subscriber-level permissions and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
Weakness: CWE-502
Which versions are affected by CVE-2023-3343?
It affects 1 product.
Products include Wpeverest User Registration.
How do I fix CVE-2023-3343?
No fix has been published for CVE-2023-3343 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2023-3343 being exploited?
There is no known exploitation of CVE-2023-3343 in the wild and no public exploit code.
Other vulnerabilities in wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder
- CVE-2023-3342 User Registration <= 3.0.2 - Authenticated (Subscriber+) Arbitrary File Upload
- 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)
- CVE-2021-24654 User Registration < 2.0.2 - Low Privilege Stored Cross-Site Scripting
Sources
Also known as GHSA-6rv8-qjf4-hjgv.