CVE-2024-23832 - CVE House
Back to Database
Status published Critical CVE-2024-23832

Mastodon Remote user impersonation and takeover

Vulnerability Description

Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account. Every Mastodon version prior to 3.5.17 is vulnerable, as well as 4.0.x versions prior to 4.0.13, 4.1.x version prior to 4.1.13, and 4.2.x versions prior to 4.2.5.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2024-23832

Credits & Attribution

No credits recorded in the NVD database.

References

More from mastodon

View All →
CVE-2025-67500
Mastodon Error Handling Discrepancy Enables Private Status Existence Enumeration
Low 3.7
CVE-2025-62605
Mastodon quotes control can be bypassed
Medium 4.3
CVE-2025-62176
Mastadon streaming server allows OAuth clients without the `read` scope to subscribe to public channels
Medium 4.3
CVE-2025-62175
Mastodon streaming API fails to disconnect disabled and suspended users
Medium 4.3
CVE-2025-62174
Mastodon allows continued access after password reset via CLI
Low 3.5

Affected Vendor

Affected Software

mastodon
Vulnerable Versions:
< 3.5.17, >= 4.0.0, < 4.0.13, >= 4.1.0, < 4.1.13, >= 4.2.0, < 4.2.5

Timeline

Official Publish: February 1st, 2024
Last Modified: February 13th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Weaknesses (CWE)

CWE-290

MITRE ATT&CK TTPs

T1557 Adversary-in-the-Middle
Collection
T1078 Valid Accounts
Persistence
T1550 Use Alternate Authentication Material
Defense Evasion
T1021 Remote Services
Lateral Movement
T1190 Exploit Public-Facing Application
Initial Access