Sharp is a content management framework built for Laravel as a package. Prior to 9.11.1, a Cross-Site Scripting (XSS) vulnerability was discovered in code16/sharp when rendering content using the SharpShowTextField component. In affected versions, expressions wrapped in {{ & }} were evaluated by Vue. This allowed attackers to inject arbitrary JavaScript or HTML that executes in the browser when the field is displayed. The issue has been fixed in v9.11.1 .

Affected: Packagist: code16/sharp

A Cross-Site Scripting (XSS) vulnerability was discovered in code16/sharp when rendering content using the SharpShowTextField component.

In affected versions, expressions wrapped in `{{` & `}}` were evaluated by Vue. This allowed attackers to inject arbitrary JavaScript or HTML that executes in the browser when the field is displayed.

For example, if a field’s value contains `{{ Math.random() }}`, it will be executed instead of being displayed as text.

### Impact

Attackers who can control content rendered through SharpShowTextField could execute arbitrary JavaScript in the context of an authenticated user’s browser.

This could lead to:

- Theft of user session tokens. - Unauthorized actions performed on behalf of users. - Injection of malicious content into the admin panel.

### Patches

The issue has been fixed in v9.11.1 of code16/sharp package.

### Mitigation / Workarounds

Sanitize or encode any user-provided data that may include (`{{` & `}}`) before displaying it in a SharpShowTextField.