CVE-2025-27399 (GCVE-0-2025-27399)

Vulnerability from cvelistv5 – Published: 2025-02-27 17:15 – Updated: 2025-02-27 17:59
VLAI
Title
Mastodon's domain blocks & rationales ignore user approval when visibility set as "users"
Summary
Mastodon is a self-hosted, federated microblogging platform. In versions prior to 4.1.23, 4.2.16, and 4.3.4, when the visibility for domain blocks/reasons is set to "users" (localized English string: "To logged-in users"), users that are not yet approved can view the block reasons. Instance admins that do not want their domain blocks to be public are impacted. Versions 4.1.23, 4.2.16, and 4.3.4 fix the issue.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 17:59 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-285 - Improper Authorization
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7999 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
mastodon mastodon Affected: < 4.1.23
Affected: >= 4.2.0, < 4.2.16
Affected: >= 4.3.0, < 4.3.4
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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