cve.bz

CVE-2021-29621

5.3 mediumEPSS 3.4%

Medium (5.3). EPSS 3.4% chance of exploitation in the next 30 days. Fixed in flask-appbuilder 3.3.0.

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.

Severity

CVSS 3.1

5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
3.4% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE
CWE-203
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-434h-p4gx-jm89PyPIflask-appbuilder<3.3.03.3.0
PYSEC-2021-90PyPIflask-appbuilder<3.3.03.3.0

References

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