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Vulnerability record · CVE-2023-4596 · published 30 August 2023

CVE-2023-4596: Incsub forminator unrestricted file upload vulnerability

Incsub · Forminator

The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to file type validation occurring after a file has been uploaded to the server in the upload_post_image() function in versions up to, and including, 1.24.6. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

9.8 CVSS 3.1 Critical EPSS 14% · top 3.5% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to file type validation occurring after a file has been uploaded to the server in the upload_post_image() function in versions up to, and including, 1.24.6. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://plugins.trac.wordpress.org/changeset/2954409/forminator/trunk/library/fields/postdata.php Patch
https://www.exploit-db.com/exploits/51664 ExploitThird Party AdvisoryVDB Entry
https://www.wordfence.com/threat-intel/vulnerabilities/id/9cd87da6-1f4c-4a15-8ebb-6e0f8ef72513?source=cve Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2954409/forminator/trunk/library/fields/postdata.php Patch
https://www.exploit-db.com/exploits/51664 ExploitThird Party AdvisoryVDB Entry
https://www.wordfence.com/threat-intel/vulnerabilities/id/9cd87da6-1f4c-4a15-8ebb-6e0f8ef72513?source=cve Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-4596), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.