Home/CVE/Misskey is an open source, federated social media platform. Starting in version 12.31.0 and prior to version 2025.4.1, m
CVE

CVE-2025-46559

Misskey is an open source, federated social media platform. Starting in version 12.31.0 and prior to version 2025.4.1, m

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.

MEDIUM · CVSS 5.4 EPSS 0.00147
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
▤

Affected Products & Versions

1
misskey>= 12.31.0 and < 2025.4.1
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-gmq6-738q-vjp2github.com
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 May 2025 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/misskey-dev/misskey/commit/583df3ec63e25a1fd34def0dac13405396b8b663Patch
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