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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.3
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
- EPSS probability
- 0.17%
- CWE
- CWE-346, CWE-441, CWE-1025
- Published
- 2025-03-10
- Last modified
- 2026-03-12
Affected products
- misskey-dev misskey
Weakness type
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