AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-39169

HIGH · CVSS 8 EPSS 0.74% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-27 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-39169
Severity
HIGH
CVSS
8
EPSS
0.74%

Original NVD 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.