VULNERABILITY INTELLIGENCE

CVE-2021-39169

CVSS score8 HIGH
EPSS probability0.74%
CISA KEVNot currently listed
Published2021-08-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Description

Misskey is a decentralized microblogging platform. In versions of Misskey prior to 12.51.0, malicious actors can use the web client built-in dialog to display a malicious string, leading to cross-site scripting (XSS). XSS could compromise the API request token. This issue has been fixed in version 12.51.0. There are no known workarounds aside from upgrading.

Weakness classification

  • security-advisories@github.com: CWE-79

Primary references