Take a Tour: New Features in Create React App v3
Here’s a handy guide to get up-to-speed with the latest release of Create React App, version 3.
openSUSE Tumbleweed — ruby2.7-rubygem-loofah — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2025:14697-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-8048 CVE-2019-15587 Upstream summary: In the Loofah gem through 2.2.0 for Ruby, non-whitelisted HTML attributes may occur in sanitized output by republishing a crafted HTML […]
How To Use JavaScript Unary Operators
Learn how to use JavaScript unary operators.
FreeBSD 12 — xscreensaver-gnome — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 12 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: xscreensaver – lock bypass Related CVEs: CVE-2015-8025 Upstream summary: RedHat bugzilla reports: In dual screen configurations, unplugging one screen will cause xscreensaver to crash, leaving the screen unlocked. Table of […]
How to Set Up Ansible on Debian 10
Introduction This guide explains how to Set Up Ansible on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the standard […]
Introduction to the DOM
The Document Object Model, usually referred to as the DOM, is an essential part of making websites interactive. It is an interface that allows a programming language to manipulate the content, structure, and style of a website. JavaScript is the client-side scripting…
Gentoo Linux — dev-libs/libcroco — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read • Source: Gentoo GLSA GLSA-202208-33 Related CVEs: CVE-2020-12825 Upstream summary: The cr_parser_parse_any_core function in libcroco's cr-parser.c does not limit recursion, leading to a denial of service via a stack overflow when trying to parse crafted CSS. […]
FreeBSD 12 — habari — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 12 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: habari — Cross-Site Scripting Vulnerability Related CVEs: CVE-2008-4601 Upstream summary: Secunia reports: Input passed via the "habari_username" parameter when logging in is not properly sanitised before being returned to the […]
How To Structure a Large Flask Application with Flask Blueprints and Flask-SQLAlchemy
In this tutorial, you’ll use Flask blueprints to structure a web application with three components: the main blueprint containing the home page and other main routes, a posts blueprint for managing blog posts, and a questions blueprint for questions and answers.
FreeBSD 12 — shtool — security advisory — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 12 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: shtool — insecure temporary file creation Upstream summary: A Zataz advisory reports that shtool contains a security flaw which could allow a malicious local user to create or overwrite the […]