Quiz and Survey Master (QSM) <= 10.3.5 - Authenticated (Contributor+) SQL Injection via 'merged_question' Parameter
| CVE | CVE-2026-2412 |
|---|---|
| CVSS | 6.5 (Medium) |
| Publicly Published | March 23, 2026 |
| Last Updated | March 23, 2026 |
| Researcher |
d.v4n_s3c
|
Description
The Quiz and Survey Master (QSM) plugin for WordPress is vulnerable to SQL Injection via the 'merged_question' parameter in all versions up to, and including, 10.3.5. This is due to insufficient sanitization of user-supplied input before being used in a SQL query. The sanitize_text_field() function applied to the merged_question parameter does not prevent SQL metacharacters like ), OR, AND, and # from being included in the value, which is then directly concatenated into a SQL IN() clause without using $wpdb->prepare() or casting values to integers. This makes it possible for authenticated attackers, with Contributor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Learn more about SQL Injection vulnerabilities and how to prevent them.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker
| Software Type | Plugin |
|---|---|
| Software Slug | quiz-master-next (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 11.0.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker
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