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CVE-2025-32962— Flask-AppBuilder open redirect vulnerability using HTTP host injection

Quick assessment

Affected
dpgaspar Flask-AppBuilder
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flask App Builder是Daniel Vaz Gaspar个人开发者的一个简单快速的应用程序开发框架。 Flask App Builder 4.6.2之前版本存在输入验证错误漏洞，该漏洞源于未验证主机标头，可能导致开放重定向。

CVSS 4.3 · Medium EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1529 · System Shutdown/Reboot
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I. Basic Information for CVE-2025-32962

Vulnerability Information
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Vulnerability Title
Flask-AppBuilder open redirect vulnerability using HTTP host injection
Source: CVE Program / CVE List V5
Vulnerability Description
Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests. Flask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection. As a workaround, use a reverse proxy to enforce trusted host headers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
Flask App Builder 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flask App Builder是Daniel Vaz Gaspar个人开发者的一个简单快速的应用程序开发框架。 Flask App Builder 4.6.2之前版本存在输入验证错误漏洞，该漏洞源于未验证主机标头，可能导致开放重定向。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
dpgaspar Flask-AppBuilder < 4.6.2 -

II. Public POCs for CVE-2025-32962

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III. Intelligence Information for CVE-2025-32962

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Patches & Fixes for CVE-2025-32962 (1)

IV. Related Vulnerabilities

Same product: Flask-AppBuilder
Same vendor: dpgaspar
Same weakness: CWE-601

V. Comments for CVE-2025-32962

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