Flask-AppBuilder before v4.1.3 allows inference of sensitive information through query strings
Impact
An authenticated Admin user could craft HTTP requests to filter users by their salted and hashed passwords strings. These filters could be made by using partial hashed password strings. The response would not include the hashed passwords, but an attacker could infer partial password hashes and their respective users.
Only when using AUTH_DB database authentication option.
Patches
Fixed on 4.1.3
For more information
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Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | flask-appbuilder | < 4.1.3 | 4.1.3 |
References
- https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-32ff-4g79-vgfc
- https://github.com/dpgaspar/Flask-AppBuilder/releases/tag/v4.1.3
- https://nvd.nist.gov/vuln/detail/CVE-2022-31177
- https://github.com/dpgaspar/Flask-AppBuilder
- https://github.com/pypa/advisory-database/tree/main/vulns/flask-appbuilder/PYSEC-2022-247.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-200, CWE-916- Platform
- Python (PyPI)
- Package
flask-appbuilder- Disclosed
- 29.07.2022
- Updated
- 11.10.2026 12:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2022-247 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-32ff-4g79-vgfc - CC BY 4.0
Vulnerability history: flask-appbuilder
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 14
- First → latest
- 05.2021 09.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 2
- Medium 9
- Low 2
Disclosures per year
- 2021: 3
- 2022: 3
- 2023: 2
- 2024: 3
- 2025: 3
- 2026: 0
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Flask-AppBuilder before v4.1.3 allows inference of sensitive information through query strings this entry
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