Forminator
CVE-2023-6133
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V5 - File Handling File type validation, storage isolation
MITRE ATT&CK
2 techniques across 2 tactics: Command and Control, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.6 (MEDIUM). Attack characteristics: network attack vector, high complexity, high privileges required, no user interaction not required. EPSS exploitation probability: 0.26%. |
| Exploit ScenarioDerived | A remote attacker could upload malicious files that can be executed on the server by sending crafted requests to the affected application. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAI
The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient blacklisting on the 'forminator_allowed_mime_types' function in versions up to, and including, 1.27.0. Rated medium severity (CVSS 6.6), this vulnerability is remotely exploitable. This Unrestricted File Upload vulnerability could allow attackers to upload malicious files that can be executed on the server.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient blacklisting on the 'forminator_allowed_mime_types' function in versions up to, and including, 1.27.0. This makes it possible for authenticated attackers with administrator-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed. Affected products include: Incsub Forminator.
Know when Forminator gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient blacklisting on the 'forminator_allowed_mime_types' function in versions up to, and including, 1.27.0. This makes it possible for authenticated attackers with administrator-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Malicious file upload attacks exploit insufficient validation when web applications accept user-provided files.
Affected Products (CPE)CVE.org
More in Forminator
View allThe Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to file type validation occurring after
The Forminator plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including
The "Forminator Contact Form, Poll & Quiz Builder" plugin before 1.6 for WordPress has SQL Injection via the wp-admin/ad
The Forminator WordPress plugin before 1.24.4 does not properly escape values that are being reflected inside form field
The "Forminator Contact Form, Poll & Quiz Builder" plugin before 1.6 for WordPress has XSS via a custom input field of a
Unauthenticated PHP Object Injection in the Forminator WordPress plugin (WPMU DEV) affects all versions up to and includ
The Forminator - Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Cross-Site Reque
The Forminator Forms - Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to arbitrary
Privilege escalation in the Forminator WordPress plugin (≤1.56.0) allows authenticated Contributor-level users to elevat
The Forminator WordPress plugin before 1.27.0 does not properly sanitize the redirect-url field in the form submission s
The Forminator WordPress plugin before 1.15.4 does not sanitize and escape the email field label, which could allow high
Privilege escalation in the WPMU DEV Forminator WordPress plugin affects every release through 1.57.3 and lets an attack
GitHub PoC
Exploit-DB