CVE-2022-48364

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-03-06 · updated 2026-06-17
Weakness: CWE-287

Description

The undo_mark_statuses_as_sensitive method in app/services/approve_appeal_service.rb in Mastodon 3.5.x before 3.5.3 does not use the server's representative account, resulting in moderator identity disclosure when a moderator approves the appeal of a user whose status update was marked as sensitive.

Affected products

mastodon: from 3.5.0 before 3.5.3 — fixed in 3.5.3

How to fix

Upgrade to a fixed version: mastodon 3.5.3. Check the vendor advisory for mitigations.

References

https://github.com/40826d/advisories/blob/master/CVE-2022-48364/README.md
https://github.com/mastodon/mastodon/blob/main/CHANGELOG.md#353---2022-05-26
https://github.com/mastodon/mastodon/compare/v3.5.2...v3.5.3
https://github.com/mastodon/mastodon/pull/18525
https://github.com/40826d/advisories/blob/master/CVE-2022-48364/README.md
https://github.com/mastodon/mastodon/blob/main/CHANGELOG.md#353---2022-05-26
https://github.com/mastodon/mastodon/compare/v3.5.2...v3.5.3
https://github.com/mastodon/mastodon/pull/18525

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