NVD / CVE Program· CNA Wordfence

CVE-2023-6133: Forminator <= 1.27.0 - Authenticated (Administrator+) Arbitrary File Upload

Noroxi assessment

Priority: Monitor (action score 19/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.85% (FIRST EPSS); higher than 58.5% of all records.
Anyone who can reach it over the internet can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
No fixed version is recorded, but the references include a patch (commit or PR) link.

Low priority for now. See the fix and affected versions sections below.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 4.9 · v3.1—No exploit No fix recorded

File upload

Published: Nov 15, 2023
Updated: Jun 17, 2026
EPSS: 0.8% · 58th percentile
CWE: CWE-434

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 19 / 40 · 4.9 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.8%

CNA vs NVD score

NVD: 4.9
CNA · Wordfence: 6.6; 1.7 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Is Forminator Forms – Contact Form, Payment Form & Custom Form Builder on your site?

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Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
incsub	forminator	cpe:2.3:a:incsub:forminator

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

incsub forminatorup to 1.27.0 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Wordfence). Independent of NVD's CPE analysis and usually ahead of it.

wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder
- up to and including 1.27.0affected · semver

Same product

incsub: all records

Other highest-scoring records for the same primary product.

CVE-2023-4596Forminator <= 1.24.6 - Unauthenticated Arbitrary File Upload
43Plan
CVE-2025-6463Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.44.2 - Unauthenticated Arbitrary File Deletion Triggered via Administrator Form Submiss
40Plan
CVE-2024-31077Forminator prior to 1.29.3 contains a SQL injection vulnerability.
37Monitor

Published before and after this one in the same product

← EarlierCVE-2021-4417Jul 12, 2023 · Forminator – Contact Form, Payment Form & Custom Form Builder <= 1.13.4 - Cross-Site Request Forgery Bypass
17Monitor
← EarlierCVE-2023-3134Jul 31, 2023 · Forminator < 1.24.4 - Reflected XSS
25Monitor
Later →CVE-2023-5119Nov 20, 2023 · Forminator and Forminator Pro < 1.27.0 - Admin+ Stored Cross-Site Scripting
19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

plugins.trac.wordpress.orgchangeset 2995007

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

István MártonPatchstack Bug Bounty Programfinder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2023-459678 days apartForminator <= 1.24.6 - Unauthenticated Arbitrary File Upload
43Plan
CVE-2024-28890160 days apartForminator prior to 1.29.0 contains an unrestricted upload of file with dangerous type vulnerability.
21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).