Introduction This article is dedicated to a series of tricks utilizing the modern capabilities of IPv6 and the shortcomings of address parser implementations in standard libraries of popular programming languages. IPv6 Zone I think many people have an idea of what IPv6 and IPv4 addresses look like: 2001:0db8:85a3:0000:0000:8a2e:0370:7334 - IPv6 192.168.0.1 - IPv4 When including an IPv6 address in a URL, it needs to be enclosed in square brackets []:…

The article is informative and intended for security specialists conducting testing within the scope of a contract. The author is not responsible for any damage caused by the application of the provided information. The distribution of malicious programs, disruption of system operation, and violation of the confidentiality of correspondence are pursued by law. Introduction The node-mysql2 library is one of the most popular libraries for connecting to a database in JavaScript, with over 2 million installations per week.…

The article is informative and intended for security specialists conducting testing within the scope of a contract. The author is not responsible for any damage caused by the application of the provided information. The distribution of malicious programs, disruption of system operation, and violation of the confidentiality of correspondence are pursued by law. Introduction In this article, I aim to elucidate a deficiency in the implementation of DOMPurify that I recently uncovered.…