CVE-2023-49438

An open redirect vulnerability in the python package Flask-Security-Too <=5.3.2 allows attackers to redirect unsuspecting users to malicious sites via a crafted URL by abusing the ?next parameter on the /login and /register routes.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/Flask-Middleware/flask-security	Product
https://github.com/brandon-t-elliott/CVE-2023-49438	Exploit Mitigation Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HCYH377TPUMUHELPI36PDS2ZM4VFIXM/
https://github.com/Flask-Middleware/flask-security	Product
https://github.com/brandon-t-elliott/CVE-2023-49438	Exploit Mitigation Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HCYH377TPUMUHELPI36PDS2ZM4VFIXM/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HCYH377TPUMUHELPI36PDS2ZM4VFIXM/

Configurations

Configuration 1 (hide)

cpe:2.3:a:flask-security-too_project:flask-security-too:*:*:*:*:*:*:*:*

History

04 Nov 2025, 19:16

Type	Values Removed	Values Added
References		() https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HCYH377TPUMUHELPI36PDS2ZM4VFIXM/ -

Information

Published : 2023-12-26 22:15

Updated : 2025-11-04 19:16

NVD link : CVE-2023-49438

Mitre link : CVE-2023-49438

CVE.ORG link : CVE-2023-49438

JSON object : View

Products Affected

flask-security-too_project

flask-security-too

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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