CVE-2025-46559
Misskey Directory Traversal Vulnerability in AiScript via `Mk:api`
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Misskey Directory Traversal Vulnerability in AiScript via `Mk:api`
Misskey is an open source, federated social media platform. Starting in version 12.31.0 and prior to version 2025.4.1, missing validation in `Mk:api` allows malicious AiScript code to access additional endpoints that it isn't designed to have access to. The missing validation allows malicious AiScript code to prefix a URL with `../` to step out of the `/api` directory, thereby being able to make requests to other endpoints, such as `/files`, `/url`, and `/proxy`. Version 2025.4.1 fixes the issue.
Reserved 2025-04-24 | Published 2025-05-05 | Updated 2025-05-05 | Assigner GitHub_MCWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
github.com/...isskey/security/advisories/GHSA-gmq6-738q-vjp2
github.com/...ommit/583df3ec63e25a1fd34def0dac13405396b8b663
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