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Vulnerability Details :

CVE-2023-6551

Summary
Assigner-CERT-PL
Assigner Org ID-4bb8329e-dd38-46c1-aafb-9bf32bcb93c6
Published At-04 Jan, 2024 | 16:04
Updated At-03 Jun, 2025 | 14:42
Rejected At-
Credits

Stored XSS in class.upload.php

As a simple library, class.upload.php does not perform an in-depth check on uploaded files, allowing a stored XSS vulnerability when the default configuration is used. Developers must be aware of that fact and use extension whitelisting accompanied by forcing the server to always provide content-type based on the file extension. The README has been updated to include these guidelines.

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:CERT-PL
Assigner Org ID:4bb8329e-dd38-46c1-aafb-9bf32bcb93c6
Published At:04 Jan, 2024 | 16:04
Updated At:03 Jun, 2025 | 14:42
Rejected At:
▼CVE Numbering Authority (CNA)
Stored XSS in class.upload.php

As a simple library, class.upload.php does not perform an in-depth check on uploaded files, allowing a stored XSS vulnerability when the default configuration is used. Developers must be aware of that fact and use extension whitelisting accompanied by forcing the server to always provide content-type based on the file extension. The README has been updated to include these guidelines.

Affected Products
Vendor
class.upload.php
Product
class.upload.php
Repo
https://github.com/verot/class.upload.php
Default Status
affected
Versions
Affected
  • From 0 through * (semver)
Problem Types
TypeCWE IDDescription
CWECWE-434CWE-434 Unrestricted Upload of File with Dangerous Type
Type: CWE
CWE ID: CWE-434
Description: CWE-434 Unrestricted Upload of File with Dangerous Type
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-592CAPEC-592 Stored XSS
CAPEC-209CAPEC-209 XSS Using MIME Type Mismatch
CAPEC ID: CAPEC-592
Description: CAPEC-592 Stored XSS
CAPEC ID: CAPEC-209
Description: CAPEC-209 XSS Using MIME Type Mismatch
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Krzysztof Zając (CERT.PL)
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://cert.pl/posts/2024/01/CVE-2023-6551
third-party-advisory
https://cert.pl/en/posts/2024/01/CVE-2023-6551
third-party-advisory
Hyperlink: https://cert.pl/posts/2024/01/CVE-2023-6551
Resource:
third-party-advisory
Hyperlink: https://cert.pl/en/posts/2024/01/CVE-2023-6551
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
1. 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://cert.pl/posts/2024/01/CVE-2023-6551
third-party-advisory
x_transferred
https://cert.pl/en/posts/2024/01/CVE-2023-6551
third-party-advisory
x_transferred
Hyperlink: https://cert.pl/posts/2024/01/CVE-2023-6551
Resource:
third-party-advisory
x_transferred
Hyperlink: https://cert.pl/en/posts/2024/01/CVE-2023-6551
Resource:
third-party-advisory
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-434CWE-434 Unrestricted Upload of File with Dangerous Type
Type: CWE
CWE ID: CWE-434
Description: CWE-434 Unrestricted Upload of File with Dangerous Type
Metrics
VersionBase scoreBase severityVector
3.15.4MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Version: 3.1
Base score: 5.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cvd@cert.pl
Published At:04 Jan, 2024 | 16:15
Updated At:03 Jun, 2025 | 15:15

As a simple library, class.upload.php does not perform an in-depth check on uploaded files, allowing a stored XSS vulnerability when the default configuration is used. Developers must be aware of that fact and use extension whitelisting accompanied by forcing the server to always provide content-type based on the file extension. The README has been updated to include these guidelines.

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
Primary3.15.4MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Secondary3.15.4MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Type: Primary
Version: 3.1
Base score: 5.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Type: Secondary
Version: 3.1
Base score: 5.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CPE Matches
verot
verot
>>class.upload.php>>-
cpe:2.3:a:verot:class.upload.php:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-434Primarycvd@cert.pl
CWE-434Secondarynvd@nist.gov
CWE-434Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-434
Type: Primary
Source: cvd@cert.pl
CWE ID: CWE-434
Type: Secondary
Source: nvd@nist.gov
CWE ID: CWE-434
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://cert.pl/en/posts/2024/01/CVE-2023-6551cvd@cert.pl
Third Party Advisory
https://cert.pl/posts/2024/01/CVE-2023-6551cvd@cert.pl
Third Party Advisory
https://cert.pl/en/posts/2024/01/CVE-2023-6551af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://cert.pl/posts/2024/01/CVE-2023-6551af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Hyperlink: https://cert.pl/en/posts/2024/01/CVE-2023-6551
Source: cvd@cert.pl
Resource:
Third Party Advisory
Hyperlink: https://cert.pl/posts/2024/01/CVE-2023-6551
Source: cvd@cert.pl
Resource:
Third Party Advisory
Hyperlink: https://cert.pl/en/posts/2024/01/CVE-2023-6551
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Third Party Advisory
Hyperlink: https://cert.pl/posts/2024/01/CVE-2023-6551
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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