CVE-2023-42451 HIGH

CVE-2023-42451: Mastodon Invalid Domain Name Normalization vulnerability

Vendor Mastodon
Product mastodon
Weakness CWE-706
Published September 19, 2023
Last update September 24, 2024
View on NVD All CVEs

CVSS base score

7.4/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 3.5.14, 4.0.10, 4.1.8, and 4.2.0-rc2, under certain circumstances, attackers can exploit a flaw in domain name normalization to spoof domains they do not own. Versions 3.5.14, 4.0.10, 4.1.8, and 4.2.0-rc2 contain a patch for this issue.

Key dates

02Disclosure timeline

September 19, 2023 CVE published
September 24, 2024 Record updated