Contact Form by BestWebSoft <= 4.3.6 - Missing Authorization

4.3
Missing Authorization
CVE CVE-2025-63056
CVSS 4.3 (Medium)
Publicly Published December 7, 2025
Last Updated April 15, 2026
Researcher Phat RiO

Description

The Contact Form by BestWebSoft plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 4.3.6. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform an unauthorized action.

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Vulnerability Details for Contact Form by BestWebSoft – Advanced WP Contact Form Builder for WordPress

Software Type Plugin
Software Slug contact-form-plugin (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.3.7, or a newer patched version
Affected Version
  • <= 4.3.6
Patched Version
  • 4.3.7

Recent vulnerabilities in Contact Form by BestWebSoft – Advanced WP Contact Form Builder for WordPress

# Title CVE ID CVSS Researchers Date
1 Contact Form by BestWebSoft <= 4.2.8 - Reflected Cross-Site Scripting via cntctfrm_contact_address CVE-2024-2198 6.1 stealthcopter March 13, 2024
2 Contact Form by BestWebSoft <= 4.2.8 - Reflected Cross-Site Scripting via cntctfrm_contact_subject CVE-2024-2200 6.1 Krzysztof Zając March 13, 2024
3 Contact Form by BestWebSoft – Advanced Contact Us Form Builder for WordPress <= 4.0.1 - Cross-Site Scripting CVE-2016-10869 6.1 Unknown August 13, 2019
4 Contact Form by BestWebSoft <= 3.95 - ReflectedCross-Site Scripting CVE-2015-9295 6.1 Neven Birusk April 12, 2017
5 Advanced Contact Us Form Builder for WordPress <= 4.0.5 - Reflected Cross-Site Scripting CVE-2017-18491 6.1 Neven Birusk April 12, 2017
6 Contact Form <= 3.82 - Authorization Bypass 6.4 Voxel@Night January 22, 2015
7 Contact Form Plugin <= 3.81 - Unauthenticated Stored Cross-Site Scripting CVE-2014-125095 7.2 August 7, 2014
8 Contact Form By BestWebSoft<= 3.34 - Cross-Site Scripting CVE-2013-7481 6.1 August 26, 2013
9 Contact Form by BestWebSoft <= 3.51 - Cross-Site Scripting CVE-2013-7475 6.1 August 13, 2013

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