Mastodon is a free, open-source social network server based on ActivityPub. In versions on the 4.x branch prior to versions 4.0.10, 4.2.8, and 4.2.0-rc2, under certain conditions, attackers can abuse the translation feature to bypass the server-side HTML sanitization, allowing unescaped HTML to execute in the browser. The impact is limited thanks to Mastodon's strict Content Security Policy, blocking inline scripts, etc. However a CSP bypass or loophole could be exploited to execute malicious XSS. Furthermore, it requires user interaction, as this can only occur upon clicking the “Translate” button on a malicious post. Versions 4.0.10, 4.2.8, and 4.2.0-rc2 contain a patch for this issue.
History

Tue, 24 Sep 2024 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-09-19T15:58:44.559Z

Updated: 2024-09-24T18:11:03.787Z

Reserved: 2023-09-08T20:57:45.573Z

Link: CVE-2023-42452

cve-icon Vulnrichment

Updated: 2024-08-02T19:23:38.536Z

cve-icon NVD

Status : Modified

Published: 2023-09-19T16:15:13.630

Modified: 2024-11-21T08:22:33.730

Link: CVE-2023-42452

cve-icon Redhat

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