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Case File

CVE-2021-29621

MEDIUM · CVSS 5.3 EPSS 3.40% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-06-07 · 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-2021-29621
Severity
MEDIUM
CVSS
5.3
EPSS
3.40%

Original NVD Description

Flask-AppBuilder is a development framework, built on top of Flask. User enumeration in database authentication in Flask-AppBuilder <= 3.2.3. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Upgrade to version 3.3.0 or higher to resolve.