CVE-2026-15602
Received Received - Intake

SQL Injection in NEX-Forms WordPress Plugin

Publication date: 2026-08-16

Last updated on: 2026-08-16

Assigner: Wordfence

Description
The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to generic SQL Injection via the 'additional_params' parameter in all versions up to, and including, 9.2.4 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 admin-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 is a second-order vulnerability; the payload is stored via the submission_report2 AJAX handler (which lacks a nonce check and relies solely on a capability that can be configured down to subscriber-level) and triggered when a CSV export is generated.

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Meta Information

Published
2026-08-16
Last Modified
2026-08-16
Generated
2026-08-16
AI Q&A
2026-08-16
EPSS Evaluated
N/A
NVD
CVE-2026-15602
EUVD
EUVD-2026-59851

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wpforms nex-forms to 9.2.4 (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 is a second-order SQL injection vulnerability in the NEX-Forms WordPress plugin up to version 9.2.4. It allows authenticated attackers with admin-level access to inject malicious SQL queries via the 'additional_params' parameter. The payload is stored through a submission handler lacking proper security checks and is triggered during CSV export generation.

Detection Guidance

To detect this vulnerability, inspect WordPress sites using the NEX-Forms plugin version 9.2.4 or lower. Check for suspicious SQL queries in logs or database activity, particularly during CSV export operations via the submission_report2 AJAX handler. Look for unauthorized data access patterns or unusual database interactions.

Impact Analysis

An attacker could extract sensitive data from the WordPress database, such as user credentials, personal information, or other confidential records. Since the vulnerability requires admin-level access to exploit, the primary risk is data exposure rather than full system compromise.

Compliance Impact

This vulnerability could lead to unauthorized data access, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Organizations may face compliance breaches, legal penalties, and reputational damage if sensitive data is exposed through this flaw.

Mitigation Strategies

Immediately update the NEX-Forms – Ultimate Forms Plugin for WordPress to the latest version beyond 9.2.4. If updating is not possible, consider disabling the plugin temporarily until a patch is applied. Ensure admin-level access is restricted and review user roles with subscriber-level capabilities that may interact with the submission_report2 AJAX handler.

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