Is CVE-2026-56384 actively exploited?

No active exploitation of CVE-2026-56384 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-56384 be exploited remotely?

Yes. CVE-2026-56384 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-56384?

CVE-2026-56384 has a CVSS score of 4.3 (MEDIUM).

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MEDIUM

CVE-2026-56384

CWE-862Published: June 21, 2026· Updated: Jun 24, 2026

4.3

CVSS v3.1

EPSS:0.19%probability of exploitation in 30 daysPercentile:9.1th

Official Description

Craft CMS contains a missing authorization vulnerability in the assets/preview-thumb endpoint. A Control Panel user without permission to view a target private asset can call the endpoint with an attacker-controlled assetId and receive preview HTML containing a signed fallback transform preview link for that private asset, because no asset-view permission check is performed before preview generation. This affects versions >= 4.0.0-RC1, <= 4.17.7 and >= 5.0.0-RC1, <= 5.9.13, and is fixed in 4.17.8 and 5.9.14.

NVD Source

Technical Analysis

CVE-2026-56384 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.