Contact Form by Bit Form - Bit Form <= 2.20.3 - Unauthenticated Arbitrary File Upload

2025-08-14 18:09

Phat RiO

Strategic Overview

Status

Patched in 2.20.4

Affected PluginBit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder

Affected Version<= 2.20.3

CVSS9.8Critical

CVECVE-2025-6679

View all Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder vulnerabilities

Vulnerability Overview

The Bit Form builder plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 2.20.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. For this to be exploitable, the PRO version needs to be installed and activated as well. Additionally a form with an advanced file upload element needs to be published.

Technical Analysis

REMEDIATION: Update to version 2.20.4, or a newer patched version --- IDENTIFIER: CWE-434 (Unrestricted Upload of File with Dangerous Type) The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

External References

https://www.cve.org/CVERecord?id=CVE-2025-6679 https://www.wordfence.com/threat-intel/vulnerabilities/id/6e2e294f-904b-4674-8baf-d3a9a260d634

CVSS Vector

9.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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