Improper Handling of Insufficient Permissions or Privileges in wagtail - CVE-2026-54261
Published: June 16, 2026
Vulnerability identifier: #VU134575
CSH Severity: Low
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: CVE-2026-54261
CWE-ID: CWE-280
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper handling of insufficient permissions or privileges in the image preview endpoint when handling image preview requests. A remote user can request a preview of any image to disclose sensitive information.
The issue is limited to users with access to the Wagtail admin, and the existing data of the image object itself is not exposed.
Affected software
wagtail
How to mitigate CVE-2026-54261
Install security update from vendor's website.
wagtail - addressed in versions 7.0.8, 7.3.3, 7.4.2