5.3

CVE-2022-21659: dpgaspar flask-appbuilder Observable Discrepancy

CVSS: 5.3v3.1MediumModified
AliasesGHSA-wfjw-w6pv-8p7fPYSEC-2022-24
Published 31-01-2022Last modified 05-05-2025
Open JSON

Vulnerability summary

CVE-2022-21659 is a medium (CVSS 5.3) Observable Discrepancy vulnerability in dpgaspar flask-appbuilder. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.6% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.95%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 31-01-2022
    PublishedVulnerability first disclosed.
  2. 05-05-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 3 sources · 3 versions

EPSS trend

Probability

0.95%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

0.00 pp

From 0.95% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.95%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Dpgaspar1 product
PyPI1 product
  • flask-appbuilder< 3.4.4 | < 3.4.2

2 vendors · 2 products

References

7 links