Vulnerability DatabaseCVE-2026-4337
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CVE-2026-4337
Published:October 27, 2026
Updated:November 02, 2026
Unrestricted Upload of File with Dangerous Type vulnerability in the PuMuKIT application allows a unauthenticated user to upload any type of file to the server, and to any path where the web server user has write permissions. This could also allow them to delete files.
Affected Packages
https://github.com/pumukit/PuMuKIT.git (GITHUB):
Affected version(s) >=5.0.0 <5.0.12
Fix Suggestion:
Update to version 5.0.12
pumukit/pumukit (PHP):
Affected version(s) >=5.0.0 <5.0.12
Fix Suggestion:
Update to version 5.0.12
Related Resources (2)
https://www.incibe.es/en/incibe-cert/notices/aviso/unrestricted-upload-file-pumukit-application
https://nvd.nist.gov/vuln/detail/CVE-2026-4337
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CVSS v4
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
LOW
CVSS v3
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Unrestricted Upload of File with Dangerous Type
CWE-434
EPSS
Base Score:
0.33