CVE-2025-25306

Misskey is an open source, federated social media platform. The patch for CVE-2024-52591 did not sufficiently validate the relation between the `id` and `url` fields of ActivityPub objects. An attacker can forge an object where they claim authority in the `url` field even if the specific ActivityPub object type require authority in the `id` field. Version 2025.2.1 addresses the issue.

CVSS v3 9.3 CRITICAL

9.3^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/misskey-dev/misskey/releases/tag/2025.2.1	Patch
https://github.com/misskey-dev/misskey/security/advisories/GHSA-6w2c-vf6f-xf26	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:*

History

26 Nov 2025, 16:24

Type	Values Removed	Values Added
First Time		Misskey Misskey misskey
CPE		cpe:2.3:a:misskey:misskey::::::::
References	~~() https://github.com/misskey-dev/misskey/releases/tag/2025.2.1 -~~	() https://github.com/misskey-dev/misskey/releases/tag/2025.2.1 - Patch
References	~~() https://github.com/misskey-dev/misskey/security/advisories/GHSA-6w2c-vf6f-xf26 -~~	() https://github.com/misskey-dev/misskey/security/advisories/GHSA-6w2c-vf6f-xf26 - Third Party Advisory

Information

Published : 2025-03-10 19:15

Updated : 2025-11-26 16:24

NVD link : CVE-2025-25306

Mitre link : CVE-2025-25306

CVE.ORG link : CVE-2025-25306

JSON object : View

Products Affected

misskey

misskey

CWE

CWE-346

Origin Validation Error

CWE-441

Unintended Proxy or Intermediary ('Confused Deputy')

CWE-1025

Comparison Using Wrong Factors

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