CVE-2023-4634

Name: CVE-2023-4634
Creator: NVD / NIST
Published: 2023-09-06T09:15:08.873+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 82.58%

Last modified Jun 17, 2026

CVE-2023-4634 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The Media Library Assistant plugin for WordPress is vulnerable to Local File Inclusion and Remote Code Execution in versions up to, and including, 3.09. This is due to insufficient controls on file paths being supplied to the 'mla_stream_file' parameter from the ~/includes/mla-stream-image.php file, where images are processed via Imagick(). EPSS estimates a 82.58% chance of exploitation in the next 30 days.

Description

The Media Library Assistant plugin for WordPress is vulnerable to Local File Inclusion and Remote Code Execution in versions up to, and including, 3.09. This is due to insufficient controls on file paths being supplied to the 'mla_stream_file' parameter from the ~/includes/mla-stream-image.php file, where images are processed via Imagick(). This makes it possible for unauthenticated attackers to supply files via FTP that will make directory lists, local file inclusion, and remote code execution possible.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

82.58%

99.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-73

Affected Software

Vendor	Product	Versions
Davidlingren	Media Library Assistant	< 3.10

References

https://github.com/Patrowl/CVE-2023-4634/Exploit, Third Party Advisory
https://packetstormsecurity.com/files/174508/wpmla309-lfiexec.tgzThird Party Advisory, VDB Entry
https://patrowl.io/blog-wordpress-media-library-rce-cve-2023-4634/Exploit, Third Party Advisory
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2955933%40media-library-assistant&new=2955933%40media-library-assistant&sfp_email=&sfph_mail=#file4Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/05c68377-feb6-442d-a3a0-1fbc246c7cbf?source=cveThird Party Advisory
https://github.com/Patrowl/CVE-2023-4634/Exploit, Third Party Advisory
https://packetstormsecurity.com/files/174508/wpmla309-lfiexec.tgzThird Party Advisory, VDB Entry
https://patrowl.io/blog-wordpress-media-library-rce-cve-2023-4634/Exploit, Third Party Advisory
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2955933%40media-library-assistant&new=2955933%40media-library-assistant&sfp_email=&sfph_mail=#file4Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/05c68377-feb6-442d-a3a0-1fbc246c7cbf?source=cveThird Party Advisory

Timeline

Published: Sep 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-4634?

How severe is CVE-2023-4634?

CVE-2023-4634 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 82.58% probability of exploitation in the next 30 days.

How do I fix CVE-2023-4634?

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-2023-4634?

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

Scan your code now

Source: NVD / NIST