CSS | Breaking Cybersecurity News | The Hacker News

Malicious actors are exploiting Cascading Style Sheets (CSS), which are used to style and format the layout of web pages, to bypass spam filters and track users' actions. That's according to new findings from Cisco Talos, which said such malicious activities can compromise a victim's security and privacy. "The features available in CSS allow attackers and spammers to track users' actions and preferences, even though several features related to dynamic content (e.g., JavaScript) are restricted in email clients compared to web browsers," Talos researcher Omid Mirzaei said in a report published last week. The insights build upon previous findings from the cybersecurity company about a spike in email threats leveraging hidden text salting in the second half of 2024 with an aim to get around email spam filters and security gateways. This technique particularly entails using legitimate features of the Hypertext Markup Language (HTML) and CSS to include commen...

It's 2018, and just a few lines of code can crash and restart any iPhone or iPad and can cause a Mac computer to freeze. Sabri Haddouche , a security researcher at encrypted instant messaging app Wire, revealed a proof-of-concept (PoC) web page containing an exploit that uses only a few lines of specially crafted CSS & HTML code. Beyond just a simple crash, the web page, if visited, causes a full device kernel panic and an entire system reboot. The Haddouche's PoC exploits a weakness in Apple's web rendering engine WebKit , which is used by all apps and web browsers running on the Apple's operating system. Since the Webkit issue failed to properly load multiple elements such as "div" tags inside a backdrop filter property in CSS, Haddouche created a web page that uses up all of the device's resources, causing shut down and restart of the device due to kernel panic. You can also watch the video demonstration published by the researcher, which s...

Mozilla's Firefox OS, the mobile operating system from the company that makes the Firefox browser build entirely on open web standards and having ability to beat Android or iOS.  Firefox OS is Mozilla's ambitious attempt to build an operating system that brings more openness to the walled gardens of Apple's iOS and Google's Android. New Operating Systems for Smartphones Its a new mobile operating system built entirely using open web standards and with codename  Boot to Gecko , means a Linux distro that automatically loads Gecko or in more simple words apps for Firefox OS are basically just websites written in HTML, JavaScript, and CSS. The Web is the Platform, which means not only taking down barriers, but also a lighter system that makes your apps run smoothly and an optimal battery life. Firefox OS written with basic HTML, CSS, and JavaScript Mozilla has also added some extra hooks to Firefox OS that allow developers to access a phone's hardware v...

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