Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker: A security weakness

Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker is affected by a security weakness. Exploitation requires an authenticated contributor account. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is <= 11.1.4.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker
Plugin slug: quiz-master-next
Affected: <= 11.1.4
Safe version: See mitigation notes
Published: Jun 27, 2026
Weakness: CWE-862 — Missing Authorization

This CVE was published Jun 27, 2026 and is one of 48 known issues for this plugin.

What to do

Update, patch or deactivate.

No fixed release is identified. Update Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker when a release after 11.1.4 becomes available; until then, disable and remove it when the site's risk warrants. The official upstream changelog lists version 11.2.4, which is newer than the published affected range. Its changelog does not clearly confirm this specific fix, so it is not counted as a known-safe release.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

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.

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

References

Primary and upstream sources

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