Contact Form by Bit Form: Multi Step Form, Calculation Contact Form, Payment Contact Form & Custom Contact Form builder <= 2.15.2 - Authenticated (Administrator+) Improper Input Validation via iconUpload Function to Arbitrary File Read

4.9
Improper Input Validation
CVE CVE-2024-9507
CVSS 4.9 (Medium)
Publicly Published October 10, 2024
Last Updated October 11, 2024
Researcher TANG Cheuk Hei (siunam)

Description

The Contact Form by Bit Form: Multi Step Form, Calculation Contact Form, Payment Contact Form & Custom Contact Form builder plugin for WordPress is vulnerable to arbitrary file read in all versions up to, and including, 2.15.2 due to improper input validation within the iconUpload function. This makes it possible for authenticated attackers, with Administrator-level access and above, to leverage a PHP filter chain attack and read the contents of arbitrary files on the server, which can contain sensitive information.

References

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Vulnerability Details for Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder

Software Type Plugin
Software Slug bit-form (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.15.3, or a newer patched version
Affected Version
  • <= 2.15.2
Patched Version
  • 2.15.3

Recent vulnerabilities in Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder

# Title CVE ID CVSS Researchers Date
1 Bit Form <= 3.2.0 - Authenticated (Administrator+) SQL Injection via 'filterText' Parameter CVE-2026-16810 6.5 Wordfence PRISM August 13, 2026
2 Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder < 3.1.4 - Authenticated (Administrator+) Stored Cross-Site Scripting CVE-2025-15669 4.4 Dmitrii Ignatyev August 1, 2026
3 Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder < 3.1.2 - Missing Authorization to Unauthenticated Unauthorized Form Submission CVE-2026-15054 5.3 Charles Vosburgh July 30, 2026
4 Bit Form <= 3.1.0 - Unauthenticated Stored Cross-Site Scripting CVE-2026-16573 7.2 Abdullah Kareem July 27, 2026
5 Bit Form <= 3.1.1 - Authenticated (Subscriber+) Arbitrary File Deletion via '_old' Parameter CVE-2026-14372 7.1 Athiwat Tiprasaharn (Jitlada), Itthidej Aramsri (Boeing777) July 8, 2026
6 Bit Form <= 3.0.0 - Missing Authorization CVE-2026-13694 5.3 Davud Sahibzada June 30, 2026
7 Bit Form <= 3.0.0 - Unauthenticated Arbitrary File Read CVE-2026-13693 7.5 Davud Sahibzada June 30, 2026
8 Bit Form <= 2.21.10 - Authenticated (Administrator+) SQL Injection CVE-2026-25418 4.9 Trương Hữu Phúc (truonghuuphuc) January 28, 2026
9 Bit Form – Contact Form Plugin <= 2.21.6 - Missing Authorization to Unauthenticated Workflow Replay CVE-2025-14901 6.5 andrea bocchetti January 6, 2026
10 Contact Form by Bit Form - Bit Form <= 2.20.3 - Unauthenticated Arbitrary File Upload CVE-2025-6679 9.8 Phat RiO August 14, 2025

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