Quiz and Survey Master (QSM) <= 11.2.6 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'qsm_hidden_questions' Parameter
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'qsm_hidden_questions' parameter in all versions up to, and including, 11.2.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the attacker to force the mlw_results INSERT to fail by submitting an over-length or duplicate qsm_unique_key value, which triggers the audit trail code branch that writes the unescaped payload to wp_mlw_qm_audit_trail.form_data.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Plugin de WordPress | Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker | <= 11.2.6 | 11.2.7 |
Referencias
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N- Debilidad (CWE)
CWE-79- Plataforma
- WordPress
- Paquete
Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker- Publicada
- 09.10.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
Wordfence Intelligence - 0e344974-08c8-45a5-a0f4-3780ce00928b - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Historial de vulnerabilidades: Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker
Todas las vulnerabilidades publicadas de este paquete (Plugin de WordPress), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 80
- Primera → última
- 07.2015 10.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 4
- Alta 16
- Media 60
Divulgaciones por año
- 2017: 0
- 2018: 0
- 2019: 2
- 2020: 4
- 2021: 6
- 2022: 16
- 2023: 10
- 2024: 7
- 2025: 5
- 2026: 28
antes: 2
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Quiz and Survey Master (QSM) <= 11.2.6 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'qsm_hidden_questions' Parameter esta entrada
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