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Flask Appbuilder CVE-2024-45314

MEDIUM
Use of Web Browser Cache Containing Sensitive Information (CWE-525)
2024-09-04 security-advisories@github.com
5.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V3 - Web Frontend Security Browser cache control
Impact

CVSS score of 5.5 (MEDIUM). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.3% exploitation probability (EPSS)

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AnalysisAI

Flask-AppBuilder is an application development framework. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

pypi flask-appbuilder fix: 4.5.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in pypi

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-525. Flask-AppBuilder is an application development framework. Prior to version 4.5.1, the auth DB login form default cache directives allows browser to locally store sensitive data. This can be an issue on environments using shared computer resources. Version 4.5.1 contains a patch for this issue. If upgrading is not possible, configure one's web server to send the specific HTTP headers for /login per the directions provided in the GitHub Security Advisory. Affected products include: Dpgaspar Flask-Appbuilder. Version information: version 4.5.1.

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Severity by source

NVD PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

Flask-AppBuilder is an application development framework. Prior to version 4.5.1, the auth DB login form default cache directives allows browser to locally store sensitive data. This can be an issue on environments using shared computer resources. Version 4.5.1 contains a patch for this issue. If upgrading is not possible, configure one's web server to send the specific HTTP headers for /login per the directions provided in the GitHub Security Advisory.

Threat Intelligence Overview

EPSS Score
0.3%
Top 82% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:dpgaspar:flask-appbuilder:*:*:*:*:*:*:*:*
CVE-2024-25128 CRITICAL
9.1 Feb 29

Flask-AppBuilder is an application development framework, built on top of Flask. Rated critical severity (CVSS 9.1), thi

CVE-2021-41265 HIGH
8.8 Dec 09

Flask-AppBuilder is a development framework built on top of Flask. Rated high severity (CVSS 8.8), this vulnerability is

CVE-2023-29005 HIGH
7.5 Apr 10

Flask-AppBuilder versions before 4.3.0 lack rate limiting which can allow an attacker to brute-force user credentials. R

CVE-2024-27083 MEDIUM
6.1 Feb 29

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CVE-2022-24776 MEDIUM
6.1 Mar 24

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CVE-2021-32805 MEDIUM
6.1 Sep 08

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CVE-2021-29621 MEDIUM
5.3 Jun 07

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CVE-2025-24023 LOW
3.7 Mar 03

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CVE-2023-34110 LOW
2.7 Jun 22

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CVE-2022-31177 LOW
2.7 Aug 01

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CVE-2025-58065 MEDIUM
6.5 Sep 11

Flask-AppBuilder is an application development framework. Rated medium severity (CVSS 6.5), this vulnerability is remote

CVE-2025-32962 MEDIUM
4.3 May 16

Flask-AppBuilder is an application development framework built on top of Flask. Rated medium severity (CVSS 4.3), this v

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