CVE-2025-62236

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 v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-296-01.json	Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-62236	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:flyfrontier:frontier_airlines:-:*:*:*:*:*:*:*

History

08 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) El sitio web de Frontier Airlines tiene un endpoint disponible públicamente que valida si una dirección de correo electrónico está asociada a una cuenta. Un atacante remoto no autenticado podría determinar direcciones de correo electrónico válidas, posiblemente ayudando en ataques posteriores.

Information

Published : 2025-10-23 20:15

Updated : 2026-10-08 11:10

NVD link : CVE-2025-62236

Mitre link : CVE-2025-62236

CVE.ORG link : CVE-2025-62236

JSON object : View

Products Affected

flyfrontier

frontier_airlines

CWE

CWE-204

Observable Response Discrepancy

{"id": "CVE-2025-62236", "cveTags": [{"tags": ["exclusively-hosted-service"], "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"}], "metrics": {"ssvcV203": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "ssvcData": {"id": "CVE-2025-62236", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-06T16:51:39.593103Z"}}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-62236", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-27T13:44:46.765763Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.9, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "affectedData": [{"vendor": "Frontier Airlines", "product": "flyfrontier.com", "versions": [{"status": "affected", "version": "*"}], "defaultStatus": "unknown"}]}], "published": "2025-10-23T20:15:40.890", "references": [{"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-296-01.json", "tags": ["Third Party Advisory"], "source": "9119a7d8-5eab-497f-8521-727c672e3725"}, {"url": "https://www.cve.org/CVERecord?id=CVE-2025-62236", "tags": ["Third Party Advisory", "US Government Resource"], "source": "9119a7d8-5eab-497f-8521-727c672e3725"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "description": [{"lang": "en", "value": "CWE-204"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "El sitio web de Frontier Airlines tiene un endpoint disponible p\u00fablicamente que valida si una direcci\u00f3n de correo electr\u00f3nico est\u00e1 asociada a una cuenta. Un atacante remoto no autenticado podr\u00eda determinar direcciones de correo electr\u00f3nico v\u00e1lidas, posiblemente ayudando en ataques posteriores."}], "lastModified": "2026-10-08T11:10:00.250", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:flyfrontier:frontier_airlines:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7704C587-F9C9-4967-BE69-8AF87B169E5F"}], "operator": "OR"}]}], "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"}