CVE-2026-15993
Received Received - Intake

Blind SQL Injection in Form Maker WordPress Plugin

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: Wordfence

Description
The Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder plugin for WordPress is vulnerable to blind SQL Injection via '{username}' Placeholder in Dynamic-Choice Field WHERE Clause in all versions up to, and including, 1.15.44 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This requires that a form is configured with a DB-backed dynamic choice field whose WHERE template references the {username} placeholder, and the attacker must first set their own display_name to a SQL payload via the standard WordPress profile edit screen before triggering the fm_reload_input AJAX endpoint.

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
CVE-2026-15993
EUVD
EUVD-2026-58857

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
10web form_maker to 1.15.44 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

This vulnerability is a blind SQL injection flaw in the Form Maker by 10Web WordPress plugin. It allows authenticated attackers with subscriber-level access or higher to inject malicious SQL code via the {username} placeholder in a form's dynamic-choice field. The issue arises from insufficient input sanitization and lack of proper SQL query preparation.

Detection Guidance

This vulnerability requires authenticated access and specific form configurations. Check WordPress user profiles for suspicious SQL payloads in display names and inspect forms using dynamic-choice fields with {username} placeholders. No direct commands are provided in the context.

Impact Analysis

An attacker could exploit this to extract sensitive data from the WordPress database, such as user credentials or other confidential information. They need to first modify their WordPress display name to include a SQL payload before triggering the vulnerable form functionality.

Compliance Impact

This vulnerability could lead to unauthorized data access, potentially violating GDPR (data protection) and HIPAA (health information privacy) by exposing sensitive user data. Compliance may be compromised if personal or protected health information is accessed or leaked.

Mitigation Strategies

Update the Form Maker by 10Web plugin to the latest version beyond 1.15.44. Remove or disable forms with dynamic-choice fields using {username} placeholders. Review user profiles for unauthorized SQL payloads in display names.

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