CVE-2022-21659

Observable Response Discrepancy in Flask-AppBuilder

Published Jan 31, 2022 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Flask-AppBuilder is an application development framework, built on top of the Flask web framework. In affected versions there exists a user enumeration vulnerability. This vulnerability allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Users are advised to upgrade to version 3.4.4 as soon as possible. There are no known workarounds for this issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-0103 Flask-AppBuilder is an application development framework, built on top of the Flask web framework. In affected versions there exists a user enumeration vulnerability. This vulnerability allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Users are advised to upgrade to version 3.4.4 as soon as possible. There are no known workarounds for this issue.
Github GHSA Github GHSA GHSA-wfjw-w6pv-8p7f Observable Response Discrepancy in Flask-AppBuilder
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Dpgaspar
Dpgaspar flask-appbuilder
CPEs cpe:2.3:a:flask-appbuilder_project:flask-appbuilder:*:*:*:*:*:*:*:* cpe:2.3:a:dpgaspar:flask-appbuilder:*:*:*:*:*:*:*:*
Vendors & Products Flask-appbuilder Project
Flask-appbuilder Project flask-appbuilder
Dpgaspar
Dpgaspar flask-appbuilder
Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 5, 2025, 4:34 PM
Reserved
Nov 16, 2021, 12:00 AM
Status
Modified
Published
Jan 31, 2022, 9:15 PM
Modified
Jun 17, 2026, 4:26 AM