CVE-2025-66402
Medium
Description
Misskey is an open source, federated social media platform. Starting in version 13.0.0-beta.16 and prior to version 2025.12.0, an actor who does not have permission to view favorites or clips can can export the posts and view the contents. Version 2025.12.0 fixes the issue.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Misskey
PublishedDec 16, 2025
First seenDec 16, 2025
Weakness typeCWE-862Missing authorization
How to fix
Update
- misskey misskey2025.12.0 or later
- misskey-js2025.12.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| misskey misskey | 13.1.0 ≤ v < 2025.12.0, 13.0.0 | 2025.12.0 |
| misskey-jsnpm | 13.0.0-beta.16 ≤ v < 2025.12.0 | 2025.12.0 |
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