Vulnerability Details CVE-2025-66402
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 9.3%
CVSS Severity
CVSS v3 Score 6.5
References
Products affected by CVE-2025-66402
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cpe:2.3:a:misskey:misskey:13.0.0
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cpe:2.3:a:misskey:misskey:13.1.0
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cpe:2.3:a:misskey:misskey:13.1.1
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cpe:2.3:a:misskey:misskey:13.1.2
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cpe:2.3:a:misskey:misskey:13.1.3
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cpe:2.3:a:misskey:misskey:13.1.4
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cpe:2.3:a:misskey:misskey:13.1.5
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cpe:2.3:a:misskey:misskey:13.1.6
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cpe:2.3:a:misskey:misskey:13.1.7
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cpe:2.3:a:misskey:misskey:13.1.8
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cpe:2.3:a:misskey:misskey:13.10.0
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cpe:2.3:a:misskey:misskey:13.10.1
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cpe:2.3:a:misskey:misskey:13.10.2
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cpe:2.3:a:misskey:misskey:13.10.3
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cpe:2.3:a:misskey:misskey:13.11.0
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cpe:2.3:a:misskey:misskey:13.11.1
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cpe:2.3:a:misskey:misskey:13.11.2
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cpe:2.3:a:misskey:misskey:13.11.3
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cpe:2.3:a:misskey:misskey:13.12.0
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cpe:2.3:a:misskey:misskey:13.12.1
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cpe:2.3:a:misskey:misskey:13.12.2
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cpe:2.3:a:misskey:misskey:13.13.0
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cpe:2.3:a:misskey:misskey:13.13.1
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cpe:2.3:a:misskey:misskey:13.13.2
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cpe:2.3:a:misskey:misskey:13.14.0
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cpe:2.3:a:misskey:misskey:13.14.1
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cpe:2.3:a:misskey:misskey:13.14.2
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cpe:2.3:a:misskey:misskey:13.2.0
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cpe:2.3:a:misskey:misskey:13.2.1
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cpe:2.3:a:misskey:misskey:13.2.2
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cpe:2.3:a:misskey:misskey:13.2.3
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cpe:2.3:a:misskey:misskey:13.2.4
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cpe:2.3:a:misskey:misskey:13.2.5
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cpe:2.3:a:misskey:misskey:13.2.6
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cpe:2.3:a:misskey:misskey:13.3.0
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cpe:2.3:a:misskey:misskey:13.3.1
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cpe:2.3:a:misskey:misskey:13.3.2
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cpe:2.3:a:misskey:misskey:13.3.3
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cpe:2.3:a:misskey:misskey:13.3.4
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cpe:2.3:a:misskey:misskey:13.4.0
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cpe:2.3:a:misskey:misskey:13.5.0
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cpe:2.3:a:misskey:misskey:13.5.1
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cpe:2.3:a:misskey:misskey:13.5.2
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cpe:2.3:a:misskey:misskey:13.5.3
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cpe:2.3:a:misskey:misskey:13.5.4
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cpe:2.3:a:misskey:misskey:13.5.5
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cpe:2.3:a:misskey:misskey:13.5.6
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cpe:2.3:a:misskey:misskey:13.6.0
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cpe:2.3:a:misskey:misskey:13.6.1
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cpe:2.3:a:misskey:misskey:13.7.0
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cpe:2.3:a:misskey:misskey:13.7.1
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cpe:2.3:a:misskey:misskey:13.7.2
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cpe:2.3:a:misskey:misskey:13.7.3
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cpe:2.3:a:misskey:misskey:13.7.4
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cpe:2.3:a:misskey:misskey:13.7.5
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cpe:2.3:a:misskey:misskey:13.8.0
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cpe:2.3:a:misskey:misskey:13.8.1
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cpe:2.3:a:misskey:misskey:13.9.0
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cpe:2.3:a:misskey:misskey:13.9.1
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cpe:2.3:a:misskey:misskey:13.9.2
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cpe:2.3:a:misskey:misskey:2023.10.0
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cpe:2.3:a:misskey:misskey:2023.10.1
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cpe:2.3:a:misskey:misskey:2023.10.2
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cpe:2.3:a:misskey:misskey:2023.11.0
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cpe:2.3:a:misskey:misskey:2023.11.1
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cpe:2.3:a:misskey:misskey:2023.12.0
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cpe:2.3:a:misskey:misskey:2023.12.1
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cpe:2.3:a:misskey:misskey:2023.12.2
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cpe:2.3:a:misskey:misskey:2023.9.0
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cpe:2.3:a:misskey:misskey:2023.9.1
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cpe:2.3:a:misskey:misskey:2023.9.2
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cpe:2.3:a:misskey:misskey:2023.9.3
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cpe:2.3:a:misskey:misskey:2024.10.0
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cpe:2.3:a:misskey:misskey:2024.10.1
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cpe:2.3:a:misskey:misskey:2024.10.2
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cpe:2.3:a:misskey:misskey:2024.11.0
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cpe:2.3:a:misskey:misskey:2024.11.1
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cpe:2.3:a:misskey:misskey:2024.2.0
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cpe:2.3:a:misskey:misskey:2024.3.0
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cpe:2.3:a:misskey:misskey:2024.3.1
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cpe:2.3:a:misskey:misskey:2024.5.0
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cpe:2.3:a:misskey:misskey:2024.7.0
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cpe:2.3:a:misskey:misskey:2024.8.0
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cpe:2.3:a:misskey:misskey:2024.9.0
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cpe:2.3:a:misskey:misskey:2025.1.0
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cpe:2.3:a:misskey:misskey:2025.10.0
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cpe:2.3:a:misskey:misskey:2025.10.1
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cpe:2.3:a:misskey:misskey:2025.10.2
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cpe:2.3:a:misskey:misskey:2025.11.0
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cpe:2.3:a:misskey:misskey:2025.11.1
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cpe:2.3:a:misskey:misskey:2025.11.2
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cpe:2.3:a:misskey:misskey:2025.2.0
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cpe:2.3:a:misskey:misskey:2025.2.1
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cpe:2.3:a:misskey:misskey:2025.3.0
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cpe:2.3:a:misskey:misskey:2025.3.1
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cpe:2.3:a:misskey:misskey:2025.3.2
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cpe:2.3:a:misskey:misskey:2025.4.0
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cpe:2.3:a:misskey:misskey:2025.4.1
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cpe:2.3:a:misskey:misskey:2025.5.0
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cpe:2.3:a:misskey:misskey:2025.5.1
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cpe:2.3:a:misskey:misskey:2025.6.0
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cpe:2.3:a:misskey:misskey:2025.6.1
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cpe:2.3:a:misskey:misskey:2025.6.2
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cpe:2.3:a:misskey:misskey:2025.6.3
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cpe:2.3:a:misskey:misskey:2025.6.4
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cpe:2.3:a:misskey:misskey:2025.7.0
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cpe:2.3:a:misskey:misskey:2025.8.0
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cpe:2.3:a:misskey:misskey:2025.9.0
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cpe:2.3:a:misskey:misskey:2025.9.1