CVSS 3.1 Score 7.4 of 10 (high)


Published Sep 19, 2023
Updated: Sep 22, 2023
CWE ID 706


CVE-2023-42451 is a high-severity vulnerability that affects Mastodon, a free and open-source social network server based on ActivityPub. Versions prior to 3.5.14, 4.0.10, 4.1.8, and 4.2.0-rc2 are vulnerable to domain name spoofing under certain circumstances due to a flaw in domain name normalization. Attackers can exploit this vulnerability to impersonate domains they do not own. The issue has been patched in versions 3.5.14, 4.0.10, 4.1.8, and 4.2.0-rc2 of Mastodon server software. This vulnerability poses a potential danger to organizations using vulnerable versions of Mastodon as it can lead to spoofing attacks and compromise the integrity and confidentiality of user data on the social network server. Note: The information provided is based on the available text and does not include any additional analysis or sources beyond the given text itself.


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