AUGUST 4, 2026
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Case File

CVE-2023-6551

MEDIUM · CVSS 5.4 EPSS 0.44%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-01-04 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.4. See the original NVD description below for full technical details.

CVE
CVE-2023-6551
Severity
MEDIUM
CVSS
5.4
EPSS
0.44%

Original NVD 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.