Cross-site scripting in wagtail - CVE-2026-54263
Published: June 16, 2026
Vulnerability identifier: #VU134577
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-54263
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Torchbox
Affected software:
wagtail
wagtail
Detailed vulnerability description
The vulnerability allows a remote user to perform actions with a victim's credentials.
The vulnerability exists due to cross-site scripting in the dynamic image URL generator view within the Wagtail admin interface when handling a crafted URL. A remote user can craft a malicious URL and trick a higher-privileged user into viewing it to perform actions with a victim's credentials.
The issue is not exploitable by an ordinary site visitor without access to the Wagtail admin.
How to mitigate CVE-2026-54263
Install security update from vendor's website.