What’s Vulnerable › Vulnerabilities

CVE-2025-6679: Contact Form by Bit Form - Bit Form <= 2.20.3 - Unauthenticated Arbitrary File Upload

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-15 · updated 2026-06-17
• Weakness: CWE-434

Description

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.

Affected products

• bitpressadmin Bit Form – Custom Contact Form, Multi Step, Conversational Form & Payment Form builder: through 2.20.3

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3343461%40bit-form%2Ftrunk&old=3336733%40bit-form%2Ftrunk&sfp_email=&sfph_mail=
• https://wordpress.org/plugins/bit-form/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6e2e294f-904b-4674-8baf-d3a9a260d634?source=cve

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