Spatie Browsershot 2.2.0 before 5.5.0 Local File Read via setHtml()

Spatie Browsershot 2.2.0 before 5.5.0 contains a local file read vulnerability that allows attackers to read server files by supplying root-relative references in HTML passed to setHtml(). Attackers can embed iframe, img, link or script elements referencing paths like /etc/passwd, which resolve to file:// URLs and render file contents into the returned PDF or screenshot.

Versions of the package spatie/browsershot before 5.0.3 are vulnerable to Improper Input Validation due to improper URL validation in the setUrl method. An attacker can exploit this vulnerability by utilizing view-source:file://, which allows for arbitrary file reading on a local file. **Note:** This is a bypass of the fix for [CVE-2024-21544](https://security.snyk.io/vuln/SNYK-PHP-SPATIEBROWSERSHOT-8496745).

Versions of the package spatie/browsershot before 5.0.5 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. **Note:** Further analysis has identified additional proof-of-concept exploits leveraging the vulnerable function. Developers using this package should ensure proper input validation to mitigate potential risks, as the issue remains unaddressed.

Versions of the package spatie/browsershot before 5.0.2 are vulnerable to Directory Traversal due to URI normalisation in the browser where the file:// check can be bypassed with file:\\. An attacker could read any file on the server by exploiting the normalization of \ into /.

Versions of the package spatie/browsershot before 5.0.1 are vulnerable to Improper Input Validation due to improper URL validation in the setUrl method. An attacker can exploit this vulnerability by using leading whitespace (%20) before the file:// protocol, resulting in Local File Inclusion, which allows the attacker to read sensitive files on the server.

Versions of the package spatie/browsershot before 5.0.5 are vulnerable to Improper Input Validation due to improper URL validation through the setUrl method, which results in a Local File Inclusion allowing the attacker to read sensitive files. **Note:** This is a bypass of the fix for [CVE-2024-21549](https://security.snyk.io/vuln/SNYK-PHP-SPATIEBROWSERSHOT-8533023).

Versions of the package spatie/browsershot from 0.0.0 are vulnerable to Server-side Request Forgery (SSRF) in the setUrl() function due to a missing restriction on user input, enabling attackers to access localhost and list all of its directories.

Browsershot 3.57.3 - Server Side XSS to LFR via HTML

Browsershot version 3.57.3 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate that the JS content imported from an external source passed to the Browsershot::html method does not contain URLs that use the file:// protocol.

Browsershot 3.57.2 - Server Side XSS to LFR via URL

Browsershot version 3.57.2 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate the URL protocol passed to the Browsershot::url method.

Browsershot 3.57.2 - Server Side XSS to LFR via HTML

Browsershot version 3.57.2 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate that the HTML content passed to the Browsershot::html method does not contain URL's that use the file:// protocol.

Arbitrary File Read

This affects the package spatie/browsershot from 0.0.0. By specifying a URL in the file:// protocol an attacker is able to include arbitrary files in the resultant PDF.