CVE-2022-4033
Quiz and Survey Master <= 8.0.4 - Improper Input Validation
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
The Quiz and Survey Master plugin for WordPress is vulnerable to input validation bypass via the 'question[id]' parameter in versions up to, and including, 8.0.4 due to insufficient input validation that allows attackers to inject content other than the specified value (i.e. a number, file path, etc..). This makes it possible attackers to submit values other than the intended input type.
| CWE | CWE-20 |
| Vendor | expresstech |
| Product | quiz and survey master (qsm) – easy quiz and survey maker |
| Published | Nov 29, 2022 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
expresstech / Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker
0 ≤ 8.0.4
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/9f5cc779-c7de-42e6-a812-5c0539067b8c?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2801761%40quiz-master-next&new=2801761%40quiz-master-next&sfp_email=&sfph_mail= wordfence.com: https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-4033
Credits
Luca Greeb Andreas Krüger