Cross-Site Scripting (XSS)

getgrav/grav is vulnerable to Reflected Cross-Site Scripting XSS. The vulnerability is due to improper input validation in the /admin/pages/page endpoint, which allows an attacker to inject malicious scripts via the dataheadercontentitems parameter...

CVE-2025-66309 Grav vulnerable to Cross-Site Scripting (XSS) Reflected endpoint /admin/pages/[page], parameter data[header][content][items], located in the "Blog Config" tab

This admin plugin for Grav is an HTML user interface that provides a convenient way to configure Grav and easily create and modify pages. Prior to 1.11.0-beta.1, a Reflected Cross-Site Scripting XSS vulnerability was identified in the /admin/pages/page endpoint of the Grav application. This...

CVE-2025-66309

Grav admin plugin (admin/pages/[page]) is affected by a Reflected XSS in the data[header][content][items] parameter of GET /admin/pages/[page]. The issue stems from insufficient input validation/sanitization and is fixed in Grav 1.11.0-beta.1. Multiple sources describe the vulnerability and inclu...