CVE-2022-3912: User Registration < 2.2.4.1 - Subscriber+ Arbitrary File Upload

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-12-12 · updated 2026-06-17
Weakness: CWE-434

Description

The User Registration WordPress plugin before 2.2.4.1 does not properly restrict the files to be uploaded via an AJAX action available to both unauthenticated and authenticated users, which could allow unauthenticated users to upload PHP files for example.

Affected products

wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Cu: before 2.2.4.1 — fixed in 2.2.4.1

How to fix

Upgrade to a fixed version: wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Cu 2.2.4.1. Check the vendor advisory for mitigations.

References

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