CVE-2023-6551

MediumCVSS 5.4/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-434

Affected software

No affected versions have been published.

Timeline

Published: Jan 4, 2024
Last modified: Jun 17, 2026
NVD status: Modified

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