CVE-2024-23832

Mastodon Remote user impersonation and takeover

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.

Category

9.4
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 1.00% Top 25%
Vendor Advisory github.com
Affected: mastodon mastodon
Published at:
Updated at:

References

Link Tags
https://github.com/mastodon/mastodon/security/advisories/GHSA-3fjr-858r-92rw vendor advisory
https://github.com/mastodon/mastodon/commit/1726085db5cd73dd30953da858f9887bcc90b958 patch
http://www.openwall.com/lists/oss-security/2024/02/02/4 patch mailing list

Frequently Asked Questions

What is the severity of CVE-2024-23832?
CVE-2024-23832 has been scored as a critical severity vulnerability.
How to fix CVE-2024-23832?
To fix CVE-2024-23832, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-23832 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-23832 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-23832?
CVE-2024-23832 affects mastodon mastodon.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.