VULNERABILITY INTELLIGENCE

CVE-2021-29621

CVSS score5.3 MEDIUM
EPSS probability3.40%
CISA KEVNot currently listed
Published2021-06-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-203
  • nvd@nist.gov: CWE-203

Primary references