What is CVE-2023-3342?

CVE-2023-3342 is a critical-severity vulnerability in Wpeverest User Registration, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.9/10. Published 2023-07-13.

How severe is CVE-2023-3342?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Is CVE-2023-3342 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Wpeverest User Registration

CVE-2023-3342

The User Registration plugin for WordPress is vulnerable to arbitrary file uploads due to a hardcoded encryption key and missing file type validation on the 'ur_upload_profile_pic' function in versions up to, and including, 3.0.2. This makes it possible for authenticated attackers with subscriber-level capabilities or above to upload arbitrary files on the affected site's server which may make remote code execution possible. This was partially patched in version 3.0.2 and fully patched in version 3.0.2.1.

Vulnerability class: Unrestricted File Upload

Published 2023-07-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (77.1th percentile), scored 2026-11-02.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

20142995/nuclei-templates

References

www.wordfence.com/threat-intel/vulnerabilities/id/a979e885-f7dd-4616-a881-64f3d… (Third Party Advisory)
plugins.trac.wordpress.org/browser/user-registration/tags/3.0.1/includes/functi… (Patch)
lana.codes/lanavdb/c0a58dff-7a5b-4cc0-82d6-2255e61d801c/ (Exploit, Third Party Advisory)
plugins.trac.wordpress.org/changeset/2933689/user-registration/trunk/includes/f… (Patch)
af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory, VDB Entry)

Frequently asked questions

What is CVE-2023-3342?: CVE-2023-3342 is a critical-severity vulnerability in Wpeverest User Registration, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.9/10. Published 2023-07-13.
How severe is CVE-2023-3342?: Critical severity. CVSS v3 base score is 9.9 out of 10.
Is CVE-2023-3342 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.