CVE-2026-15993

Form Maker by 10Web <= 1.15.44 - Authenticated (Subscriber+) SQL Injection via '{username}' Placeholder in Dynamic-Choice Field WHERE Clause

2026-08-14 00:00
R4mbb

Strategic Overview

Status
Patched in 1.15.45
Affected Version
<= 1.15.44
CVSS
5.3Medium
Weakness type
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE
CVE-2026-15993
View all Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder vulnerabilities

At a glance

CVE-2026-15993 is a medium-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Form Maker by 10Web WordPress plugin, affecting versions <= 1.15.44. It carries a CVSS score of 5.3 (reachable over the network; high confidentiality impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.15.45; sites on affected versions should update now. Disclosed August 2026, reported by R4mbb.

Vulnerability Overview

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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Reaching this weakness in Form Maker by 10Web <= 1.15.44 takes an account at Subscriber level or above. SQL injection happens when request data is concatenated into a query instead of being bound as a parameter, letting an attacker change the structure of the statement rather than just its values.

A working injection can read any table the database user can see, which on a WordPress install means user records, password hashes and session or API secrets stored in options. For Form Maker by 10Web the fix is 1.15.45: builds <= 1.15.44 are affected, anything from 1.15.45 onward is not.

Remediation

Update to version 1.15.45, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Form Maker by 10Web 1.15.45 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

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