---
id: CVE-2025-62236
title: >-
  The Frontier Airlines website has a publicly available endpoint that validates
  if an email addresses is associated with an account
summary: >-
  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 att…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-204
vendor: flyfrontier
product: frontier_airlines
affected:
  - frontier_airlines
published: '2025-10-23'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-62236'
references:
  - url: >-
      https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-296-01.json
    label: 9119a7d8-5eab-497f-8521-727c672e3725
  - url: 'https://www.cve.org/CVERecord?id=CVE-2025-62236'
    label: 9119a7d8-5eab-497f-8521-727c672e3725
tags:
  - nvd
epss: 0.00332
epssPercentile: 0.24374
ingestedAt: '2026-10-08T11:31:27.563Z'
---

## Overview

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.

## Affected

- `frontier_airlines`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.