CVE-2025-25306

critical · 9.3

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.

9.3

CVSS

0.2%

EPSS (exploit prob.)

7th

EPSS percentile

2025-03-10

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N

Weaknesses

CWE-346CWE-441CWE-1025

Affected products

Vendor	Product	Affected versions
misskey	misskey	< 2025.2.1

Check a specific version with /api/v1/cve/match.

References

https://github.com/misskey-dev/misskey/releases/tag/2025.2.1
https://github.com/misskey-dev/misskey/security/advisories/GHSA-6w2c-vf6f-xf26

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-25306