Mpdf Exploit Jun 2026

The MPDF exploit works by exploiting a vulnerability in the library's handling of user-input data. Specifically, the vulnerability exists in the mPDF::WriteHTML() method, which is used to generate PDF documents from HTML code. An attacker can inject malicious code into this method by providing specially crafted input data. This input data can be in the form of HTML code, JavaScript, or even PHP code.

Another overlooked exploit vector is . Using the same background-image technique (even without Phar), an attacker can force the mPDF server to make HTTP requests to internal services. mpdf exploit

As of 2025, researchers are actively looking for in mPDF’s font and cache handling. Developers should treat mPDF as a high-risk component and wrap it with strict guardrails. The MPDF exploit works by exploiting a vulnerability

The mPDF library is a powerhouse in the PHP ecosystem for converting HTML and CSS into PDF documents. However, its popularity has also made it a prime target for researchers and attackers. Understanding "mPDF exploit" vectors is critical for any developer integrating this library into their web applications. This input data can be in the form