BaseFortify

Publication date: 2025-10-23

Last updated on: 2025-12-31

Assigner: Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government

Description

The Frontier Airlines website has a publicly available endpoint that validates if an email addresses is associated with an account. An unauthenticated, remote attacker could determine valid email addresses, possibly aiding in further attacks.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-23

Last Modified

2025-12-31

Generated

2026-07-06

AI Q&A

2025-10-23

EPSS Evaluated

2026-07-05

NVD

CVE-2025-62236

Affected Vendors & Products

Vendor	Product	Version / Range
flyfrontier	frontier_airlines	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-204	The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the Frontier Airlines website, where a publicly accessible endpoint allows anyone, including unauthenticated remote attackers, to check if an email address is associated with an account. This means attackers can verify valid email addresses, which could be used to facilitate further attacks such as phishing or account takeover attempts.

Impact Analysis

The vulnerability can impact you by exposing whether your email address is registered with Frontier Airlines. Attackers could use this information to target you with phishing attacks, social engineering, or attempts to compromise your account, potentially leading to unauthorized access or identity theft.

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