Is CVE-2021-39169 actively exploited?

CVE-2021-39169 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-39169?

CVE-2021-39169 has a CVSS score of 8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-39169?

Patch guidance is available from misskey security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-39169.

Fix CVE-2021-39169 - HIGH misskey misskey

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-79 · Cross-site Scripting (XSS)

Metadata

Primary Vendor: MISSKEY
Published: 8/27/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-39169

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary