CVE-2026-9233

Quiz and Survey Master (QSM) <= 11.1.4 - Missing Authorization to Authenticated (Contributor+) Arbitrary Modification via qsm_insert_quiz_template AJAX Action

CVSS 4.3 MEDIUMEPSS 0.3%CWE-862

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.3EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

27 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 11.1.4. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to create, modify, and delete quiz output templates stored in the mlw_quiz_output_templates database table, including storing unsanitized HTML content such as arbitrary script tags.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

expresstech · Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker

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References