CVE-2023-36821

Summary

CVE-2023-36821 is a vulnerability affecting Uptime Kuma, a self-hosted monitoring tool. This issue permits authenticated attackers to install malicious plugins prior to version 1.22.1, leading to potential remote code execution. Uptime Kuma offers a plugin installation feature from an official list, which is currently disabled in the web interface but still accessible through API endpoints. Upon downloading a plugin, it's installed via `npm install` in the plugin directory. With this vulnerability, a maliciously crafted plugin exploiting npm scripts can bypass validation and gain code execution. Version 1.22.1 includes a patch to address this issue.

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