Missing Authorization in wagtail - CVE-2026-25517
Published: May 5, 2026
Vulnerability identifier: #VU130195
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-25517
CWE-ID: CWE-862
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 access control in admin preview endpoints when handling crafted preview form submissions. A remote privileged user can submit a specially crafted form to obtain a preview rendering of page, snippet, or site setting objects and disclose sensitive information.
The issue is limited to users with access to the Wagtail admin, and the existing data of the targeted object itself is not exposed.
Affected software
wagtail
How to mitigate CVE-2026-25517
Install security update from vendor's website.
wagtail - addressed in versions 6.3.6, 7.0.4, 7.1.3, 7.2.2, 7.3