CVE-2025-4538

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

A vulnerability was found in kkFileView 4.4.0. It has been classified as critical. This affects an unknown part of the file /fileUpload. The manipulation of the argument File leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-284 CWE-434

Affected software

Vendor	Product	Versions
n/a	kkFileView	4.4.0

References

https://magnificent-dill-351.notion.site/Arbitrary-File-Upload-in-kkFileView-4-4-0-1e3c693918ed802581faccab9140a130Broken Link
https://vuldb.com/?ctiid.308283Permissions Required, VDB Entry
https://vuldb.com/?id.308283Third Party Advisory, VDB Entry
https://vuldb.com/?submit.566596Third Party Advisory, VDB Entry
https://magnificent-dill-351.notion.site/Arbitrary-File-Upload-in-kkFileView-4-4-0-1e3c693918ed802581faccab9140a130Broken Link

Timeline

Published: May 11, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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