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CVE-2021-39169

High

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.

SeverityHigh
CVSS8.0
Exploit probability—
ProductMisskey
PublishedAug 27, 2021
First seenAug 27, 2021
Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update
  • misskey misskey12.51.0 or later

Affected products

ProductAffected versionsFixed in
misskey misskeyv < 12.51.012.51.0

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