CVE & CISA-KEV Catalog

CVE-2024-6221

HIGH
7.5
CVSS v3
NVD

Description

A vulnerability in corydolphin/flask-cors version 4.0.1 allows the `Access-Control-Allow-Private-Network` CORS header to be set to true by default. This behavior can expose private network resources to unauthorized external access, leading to significant security risks such as data breaches, unauthorized access to sensitive information, and potential network intrusions.

How to fix

Remediation Available
python-flask-corsDebian
Fixed in:5.0.0-1CVE-2024-6221
Fixed in:5.0.0-1CVE-2024-6221
python-flask-corsUbuntu
Fixed in:3.0.8-2ubuntu0.1+esm1USN-7612-1
Fixed in:3.0.9-2ubuntu0.1USN-7612-1
Fixed in:4.0.0-1ubuntu0.1~esm1USN-7612-1
python3-flask-corsUbuntu
Fixed in:3.0.8-2ubuntu0.1+esm1USN-7612-1
Fixed in:3.0.9-2ubuntu0.1USN-7612-1
Fixed in:4.0.0-1ubuntu0.1~esm1USN-7612-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.68%probability of exploitation in 30 days
48thpercentile

Moderate risk: more likely to be exploited than 48% of all known CVEs.

References

Exploit1
Other references1

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-27350Critical9.8100%KEV + RansomFix
CVE-2019-1653High7.5100%KEV-
CVE-2023-23752Medium5.3100%KEVFix
CVE-2023-29298High7.5100%KEV-
CVE-2023-38205High7.5100%KEV-
CVE-2024-27348Critical9.899%KEVFix
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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-07.