Back to overview

CVE-2026-56385

MEDIUM
4.3
CVSS 3.1
Description
Craft CMS versions >= 5.0.0-RC1, <= 5.9.13 and >= 4.0.0-RC1, <= 4.17.7 contain an authorization bypass in the assets/preview-file endpoint. The action does not enforce per-asset view authorization before returning preview content, allowing an authenticated low-privileged user to supply a controlled assetId for an asset they are not permitted to view and still receive preview response data (previewHtml), including a private preview image route containing the target private assetId. Fixed in 5.9.14 and 4.17.8.

Metadata

CVE ID
CVE-2026-56385
State
PUBLISHED
Assigner
VulnCheck
Reserved
2026-06-21 02:05 UTC
Published
2026-06-21 13:27 UTC
Last updated
2026-06-21 13:27 UTC
Primary CWE
CWE-639
Authorization Bypass Through User-Controlled Key
Vendor / Product
craftcms / cms
Sources
cve.org  ·  NVD

Severity & Metrics

4.3 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products (1)
VendorProductPlatformVersions
craftcms cms — 5.0.0-RC1 < 5.9.14, 5.9.14, 4.0.0-RC1 < 4.17.8, 4.17.8
Weakness (CWE)
CWESourceDescription
CWE-639 cna Authorization Bypass Through User-Controlled Key
CVSS scores (2)
ScoreSeverityVersionSourceVector
5.3 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.3 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References (3)
Back to overview