Quiz and Survey Master (QSM) <= 11.1.0 - Unauthenticated Shortcode Injection Leading to Arbitrary Quiz Result Disclosure via Quiz Answer Text Input Fields
| CVE | CVE-2026-5797 |
|---|---|
| CVSS | 5.3 (Medium) |
| Publicly Published | April 16, 2026 |
| Last Updated | April 17, 2026 |
| Researcher |
Rafshanzani Suhada
|
Description
The Quiz And Survey Master plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to and including 11.1.0. This is due to insufficient input sanitization and the execution of do_shortcode() on user-submitted quiz answer text. User-submitted answers pass through sanitize_text_field() and htmlspecialchars(), which only strip HTML tags but do not encode or remove shortcode brackets [ and ]. When quiz results are displayed, the plugin calls do_shortcode() on the entire results page output (including user answers), causing any injected shortcodes to be executed. This makes it possible for unauthenticated attackers to inject arbitrary WordPress shortcodes such as [qsm_result id=X] to access other users' quiz submissions without authorization, as the qsm_result shortcode lacks any authorization checks.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- 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) – Easy Quiz and Survey Maker
| Software Type | Plugin |
|---|---|
| Software Slug | quiz-master-next (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 11.1.1, 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) – Easy Quiz and Survey Maker
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