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xxe

Safeguard articles tagged "xxe" — guides, analysis, and best practices for software supply chain and application security.

18 articles

AppSec

Choosing an npm XML Parser: Security Comparison and XXE Pitfalls

Not every npm XML parser carries the same risk. We compare xml2js, fast-xml-parser, sax, and libxmljs on their CVE history, XXE exposure, and safe configuration.

Mar 27, 20267 min read
Security

How to Use PyPI openpyxl Safely: Security Risks and Fixes

The openpyxl package on PyPI is safe for most workloads, but XML parsing and spreadsheet formula injection deserve attention. Here is what to watch for.

Mar 26, 20265 min read
Security

XXE Attack Demo: Understanding and Defending Against XML External Entities

An XXE attack demo makes the vulnerability click: an XML parser that trusts external entities can be tricked into reading files or making requests. Here is how it works and how to shut it down.

Mar 22, 20265 min read
AppSec

xercesImpl: XXE Risks in Java XML Parsing and How to Configure It

The xercesImpl Maven artifact turns up transitively in thousands of Java builds. Here is its real CVE history, why XXE is your configuration's fault, and the hardening block to paste.

Mar 19, 20266 min read
Code Security

XML External Entity (XXE) Prevention: Disabling the Features That Attack You

XXE attacks exploit XML parser features that most applications never need. Here is how to disable them across every major language and framework.

Feb 14, 20265 min read
Application Security

XML Parsing Security: XXE, Billion Laughs, and Beyond

XML's feature richness is its security weakness. XXE, entity expansion, and XSLT injection continue to plague applications that process XML.

Jan 12, 20264 min read

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