Arbitrary file upload in Forminator Contact Form, Poll & Quiz Builder - CVE-2023-4596
Published: August 31, 2023 / Updated: June 21, 2024
Vulnerability identifier: #VU80191
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-4596
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file extension when uploading files within the upload_post_image() function. A remote non-authenticated attacker can upload and execute arbitrary file on the system.
Affected software
Forminator Contact Form, Poll & Quiz Builder
How to mitigate CVE-2023-4596
Install update from vendor's website.
Forminator Contact Form, Poll & Quiz Builder - update to 1.25.0
Links to Public Exploits and PoC-codes
- Exploit #10110 - CVE-2023-4596 (PoC Script for CVE-2023-4596, unauthenticated Remote Command Execution through arbitrary file uploads.) (June 21, 2024)
- Exploit #9827 - CVE-2023-4596-Vulnerable-Exploit-and-Checker-Version (CVE-2023-4596 Vulnerable Exploit and Checker Version) (May 23, 2024)
- Exploit #9271 - WordPress Plugin Forminator 1.24.6 - Unauthenticated Remote Command Execution (August 31, 2023)
External References
- https://www.exploit-db.com/exploits/51664
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9cd87da6-1f4c-4a15-8ebb-6e0f8ef72513?source=cve
- https://plugins.trac.wordpress.org/changeset/2954409/forminator/trunk/library/fields/postdata.php
- https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/forminator/forminator-1246-unauthenticated-arbitrary-file-upload