Cross-site scripting in Grav Admin Plugin - CVE-2026-44737
Published: May 5, 2026 / Updated: May 7, 2026
Vulnerability identifier: #VU130091
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-44737
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary script in the victim's browser.
The vulnerability exists due to improper neutralization of input during web page generation in the /admin/pages/[page] endpoint when handling the data[header][title] parameter. A remote privileged user can inject a crafted script payload to execute arbitrary script in the victim's browser.
User interaction is required when a victim accesses the crafted URL or clicks the folder containing the payload in the move function.
Affected software
Grav Admin Plugin
How to mitigate CVE-2026-44737
Install security update from vendor's website.
Grav Admin Plugin - update to 1.10.49.5