CVE-2024-4367 - vulnerability to execute arbitrary JavaScript code in PDF.js

The article discusses the CVE-2024-4367 vulnerability, which involves arbitrary JavaScript code execution in the PDF.js library. This library is widely used for rendering PDF files in web browsers, making this vulnerability particularly dangerous. The authors highlight that improper input validation in PDF.js allows an attacker to inject malicious code that could be executed on the victims' systems. Importantly, an attacker can accomplish this by simply creating a malicious PDF file. The article also addresses the impact of such a vulnerability on user security and the recommended countermeasures that should be taken to protect against potential attacks. According to the authors, users should be aware of the threats associated with opening unknown PDF files and should regularly update their software to safeguard against such vulnerabilities.