EUVD-2026-310051

fkie_cve-2026-44737

grav-plugin-admin is the 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 1.10.49.5, the application fails to properly validate and sanitize user input in the data[header][title] parameter. As a result, attackers can craft a malicious URL with an XSS payload. When this URL is accessed, the injected script is reflected back in the HTTP response and executed within the context of the victim's browser session. This vulnerability is fixed in 1.10.49.5.

GHSA-fmg2-f5r9-24qc — Grav: Stored XSS via page title (data[header][title]) in admin panel

Affected: Packagist: getgrav/grav

### Summary _A Stored Cross-Site Scripting (XSS) vulnerability was identified in the /admin/pages/[page] endpoint of the Grav application. This vulnerability allows attackers to inject malicious scripts into the data[header][title] parameter._

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### Details Vulnerable Endpoint: GET /admin/pages/[page] Parameter: data[header][title]

The application fails to properly validate and sanitize user input in the data[header][title] parameter. As a result, attackers can craft a malicious URL with an XSS payload. When this URL is accessed, the injected script is reflected back in the HTTP response and executed within the context of the victim's browser session.

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### PoC **Payload:** `<img src=1 onerror=alert(1)>`

1. Log in to the Grav Admin Panel and navigate to Pages. 2. Create a new page or edit an existing one.

3. Edit title of the page to `<img src=1 onerror=alert(1)>`

4. Save page 5. Open the move function and click on the folder having the payload

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### Impact

Stored cross-site scripting (XSS) attacks can have serious consequences, including:

- User actions: At…

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EUVD-2026-310051

fkie_cve-2026-44737

GHSA-fmg2-f5r9-24qc — Grav: Stored XSS via page title (data[header][title]) in admin panel