PT-2025-21650 · Unknown · Flask-Appbuilder

Mar0N0 · Published 2025-05-16 · Updated 2026-06-03 · CVE-2025-32962

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: Flask-AppBuilder versions prior to 4.6.2

Description: The issue allows 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.

Recommendations: For versions prior to 4.6.2, use a reverse proxy to enforce trusted host headers as a workaround. Update to version 4.6.2 or later, which introduces the FAB SAFE REDIRECT HOSTS configuration variable to define safe domains for redirection.

Exploit

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

BDU:2026-07921

CVE-2025-32962

GHSA-99PM-CH96-CCP2

Affected Products

Flask-Appbuilder

References · 13

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32962.json · Exploit
• https://github.com/dpgaspar/Flask-AppBuilder/commit/32eedbbb5cb483a3e782c5f2732de4a6a650d9b6 · Patch
• https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-99pm-ch96-ccp2 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-APP-PYPI-CVE-2025-32962 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-32962 · Security Note
• https://osv.dev/vulnerability/CVE-2025-32962 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-07921 · Security Note
• https://osv.dev/vulnerability/GHSA-99pm-ch96-ccp2 · Vendor Advisory
• https://github.com/dpgaspar/Flask-AppBuilder · Note
• https://twitter.com/VulmonFeeds/status/1923394018387407197 · Twitter Post
• https://t.me/cveNotify/135987 · Telegram Post
• https://twitter.com/CVEnew/status/1923434471774363702 · Twitter Post
• https://t.me/cvetracker/24028 · Telegram Post