CVE-2023-3342

Name: CVE-2023-3342
Creator: NVD / NIST
Published: 2023-07-13T03:15:10.063+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.9/10EPSS 1.45%

Last modified Jun 17, 2026

CVE-2023-3342 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. 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. EPSS estimates a 1.45% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.9/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

1.45%

70.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Wpeverest	User Registration	< 3.0.2.1

References

https://lana.codes/lanavdb/c0a58dff-7a5b-4cc0-82d6-2255e61d801c/Exploit, Third Party Advisory
https://plugins.trac.wordpress.org/browser/user-registration/tags/3.0.1/includes/functions-ur-core.php#L3156Patch
https://plugins.trac.wordpress.org/changeset/2933689/user-registration/trunk/includes/functions-ur-core.phpPatch
https://www.wordfence.com/threat-intel/vulnerabilities/id/a979e885-f7dd-4616-a881-64f3d97c309d?source=cveThird Party Advisory
http://packetstormsecurity.com/files/173434/WordPress-User-Registration-3.0.2-Arbitrary-File-Upload.htmlThird Party Advisory, VDB Entry
https://lana.codes/lanavdb/c0a58dff-7a5b-4cc0-82d6-2255e61d801c/Exploit, Third Party Advisory
https://plugins.trac.wordpress.org/browser/user-registration/tags/3.0.1/includes/functions-ur-core.php#L3156Patch
https://plugins.trac.wordpress.org/changeset/2933689/user-registration/trunk/includes/functions-ur-core.phpPatch
https://www.wordfence.com/threat-intel/vulnerabilities/id/a979e885-f7dd-4616-a881-64f3d97c309d?source=cveThird Party Advisory

Timeline

Published: Jul 13, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-3342?

How severe is CVE-2023-3342?

CVE-2023-3342 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3342?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3342?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST