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Vulnerability Details :

CVE-2024-6844

Summary
Assigner-@huntr_ai
Assigner Org ID-c09c270a-b464-47c1-9133-acb35b22c19a
Published At-20 Mar, 2025 | 10:10
Updated At-03 Nov, 2025 | 19:34
Rejected At-
Credits

Inconsistent CORS Matching Due to Handling of '+' in URL Path in corydolphin/flask-cors

A vulnerability in corydolphin/flask-cors version 4.0.1 allows for inconsistent CORS matching due to the handling of the '+' character in URL paths. The request.path is passed through the unquote_plus function, which converts the '+' character to a space ' '. This behavior leads to incorrect path normalization, causing potential mismatches in CORS configuration. As a result, endpoints may not be matched correctly to their CORS settings, leading to unexpected CORS policy application. This can cause unauthorized cross-origin access or block valid requests, creating security vulnerabilities and usability issues.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:@huntr_ai
Assigner Org ID:c09c270a-b464-47c1-9133-acb35b22c19a
Published At:20 Mar, 2025 | 10:10
Updated At:03 Nov, 2025 | 19:34
Rejected At:
▼CVE Numbering Authority (CNA)
Inconsistent CORS Matching Due to Handling of '+' in URL Path in corydolphin/flask-cors

A vulnerability in corydolphin/flask-cors version 4.0.1 allows for inconsistent CORS matching due to the handling of the '+' character in URL paths. The request.path is passed through the unquote_plus function, which converts the '+' character to a space ' '. This behavior leads to incorrect path normalization, causing potential mismatches in CORS configuration. As a result, endpoints may not be matched correctly to their CORS settings, leading to unexpected CORS policy application. This can cause unauthorized cross-origin access or block valid requests, creating security vulnerabilities and usability issues.

Affected Products
Vendor
corydolphin
Product
corydolphin/flask-cors
Versions
Affected
  • From unspecified through latest (custom)
Problem Types
TypeCWE IDDescription
CWECWE-346CWE-346 Origin Validation Error
Type: CWE
CWE ID: CWE-346
Description: CWE-346 Origin Validation Error
Metrics
VersionBase scoreBase severityVector
3.05.3MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Version: 3.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0
N/A
Hyperlink: https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://lists.debian.org/debian-lts-announce/2025/05/msg00049.html
N/A
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/05/msg00049.html
Resource: N/A
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@huntr.dev
Published At:20 Mar, 2025 | 10:15
Updated At:03 Nov, 2025 | 20:17

A vulnerability in corydolphin/flask-cors version 4.0.1 allows for inconsistent CORS matching due to the handling of the '+' character in URL paths. The request.path is passed through the unquote_plus function, which converts the '+' character to a space ' '. This behavior leads to incorrect path normalization, causing potential mismatches in CORS configuration. As a result, endpoints may not be matched correctly to their CORS settings, leading to unexpected CORS policy application. This can cause unauthorized cross-origin access or block valid requests, creating security vulnerabilities and usability issues.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.05.3MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Type: Secondary
Version: 3.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CPE Matches
flask-cors_project
flask-cors_project
>>flask-cors>>4.0.1
cpe:2.3:a:flask-cors_project:flask-cors:4.0.1:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-346Secondarysecurity@huntr.dev
CWE ID: CWE-346
Type: Secondary
Source: security@huntr.dev
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0security@huntr.dev
Exploit
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/05/msg00049.htmlaf854a3a-2127-422b-91ae-364da2661108
N/A
Hyperlink: https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0
Source: security@huntr.dev
Resource:
Exploit
Third Party Advisory
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/05/msg00049.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A

Change History

0
Information is not available yet

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