10Web Form Maker Plugin up to 1.15.44 on WordPress Dynamic-Choice Field Username sql injection

Summaryinfo

A vulnerability categorized as critical has been discovered in 10Web Form Maker Plugin up to 1.15.44. Affected by this issue is some unknown functionality of the component Dynamic-Choice Field. Executing a manipulation of the argument Username can lead to sql injection. This vulnerability is registered as CVE-2026-15993. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in 10Web Form Maker Plugin up to 1.15.44. This vulnerability affects an unknown functionality of the component Dynamic-Choice Field. The manipulation of the argument username with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-15993 since 07/16/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/15/2026). The MITRE ATT&CK project declares the attack technique as T1505.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• 10Web

Name

• Form Maker Plugin

Version

• 1.15.0
• 1.15.1
• 1.15.2
• 1.15.3
• 1.15.4
• 1.15.5
• 1.15.6
• 1.15.7
• 1.15.8
• 1.15.9
• 1.15.10
• 1.15.11
• 1.15.12
• 1.15.13
• 1.15.14
• 1.15.15
• 1.15.16
• 1.15.17
• 1.15.18
• 1.15.19
• 1.15.20
• 1.15.21
• 1.15.22
• 1.15.23
• 1.15.24
• 1.15.25
• 1.15.26
• 1.15.27
• 1.15.28
• 1.15.29
• 1.15.30
• 1.15.31
• 1.15.32
• 1.15.33
• 1.15.34
• 1.15.35
• 1.15.36
• 1.15.37
• 1.15.38
• 1.15.39
• 1.15.40
• 1.15.41
• 1.15.42
• 1.15.43
• 1.15.44

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