Cross-site scripting in Grav Admin Plugin - #VU130091
Published: May 5, 2026 / Updated: May 7, 2026
Vulnerability identifier: #VU130091
CSH Severity: Low
CVSSv4.0: 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/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Grav Admin Plugin
Grav Admin Plugin
Software vendor:
Grav CMS
Grav CMS
Description
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.
Remediation
Install security update from vendor's website.