CVE-2026-63303: Quick.CMS 0 through 6.8.0

CVE-2026-63303. EPSS 0.00574 (percentile 0.46638), scored 22-Oct-2026.

Affected technology

Quick.CMS · 0 through 6.8.0
OpenSolution

Description’s affected range: through the URI path component of HTTP requests

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · High privileges required · No user interaction required

What an attacker can do

An authenticated attacker with admin privileges can use this vulnerability to read contents of files located in the sibling directory of the webroot via a crafted HTTP request containing ../ sequences in the URI. Vendor/CNA’s CVSS 4.0 assessment (base score 5.1/10) rates confidentiality, integrity and availability impact as none.

Published 24-Oct-2026 15:09 UTC

CWE: CWE-23
CCR priority: 0.1 /100 (P5)
EPSS: 0.00574 · percentile 0.4671 · 2026-10-24
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-24 15:09:16.138216+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-24 15:07:27.951960+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-63303.html