Cyber Risks · PortSwigger Research

Vulnerable Java Script dependency

Summary: PortSwigger Research notes that third-party JavaScript libraries can introduce DOM-based vulnerabilities, including ones used to hijack user accounts such as DOM-XSS. Because some library flaws affect every application that imports the library while others only affect applications using certain features, the write-up recommends applying all available security updates regardless.

Key Takeaway: A single unpatched library can make a website exceptionally easy to exploit, and since pinpointing which library vulnerabilities actually apply to your site is difficult, the practical exposure is every third-party dependency you have not updated.

Read the original at PortSwigger Research ↗

Topics
Vulnerabilities & Patching
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