Information disclosure in Craft CMS - #VU133305
Published: June 3, 2026
Vulnerability identifier: #VU133305
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote user can call assets/preview-thumb and receive preview HTML that contains a signed fallback transform link for that private asset.
Affected software
Craft CMS
Remediation
Install updates from vendor's website.
Craft CMS - addressed in versions 4.17.8, 5.9.14