Google credits security researcher Shaheen Fazim with reporting the exploit to Google. The dude's LinkedIn says he's a professional bug hunter, and I'd say he deserves the highest possible bug bounty for finding something that a government agency is saying "in CSS in Google Chrome before 145.0.7632.75 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page."
Web browsers are among the top targets for today's cybercriminals, playing a role in nearly half of all security incidents, new research reveals. According to Palo Alto Networks' 2026 Global Incident Response report, an analysis of 750 major cyber incidents recorded last year across 50 countries found that, in total, 48% of cybercrime events involved browser activity. Individuals trying to connect to the web, including business employees, are exposed to cyberthreats on a daily basis.
"Instead of launching PowerShell directly, the attacker uses this script to control how execution begins and to avoid more common, easily recognized execution paths," Blackpoint researchers Jack Patrick and Sam Decker said in a report published last week. In doing so, the idea is to transform the App-V script into a living-off-the-land (LotL) binary that proxies the execution of PowerShell through a trusted Microsoft component to conceal the malicious activity.
The Microsoft Defender team says that the attacker created fake web app projects built with Next.js and disguised them as coding projects to share with developers during job interviews or technical assessments. The researchers initially identified a repository hosted on the Bitbucket cloud-based Git-based code hosting and collaboration service. However, they discovered multiple repositories that shared code structure, loader logic, and naming patterns.
A CVE (Common Vulnerabilities and Exposures) is a unique identifier for a publicly disclosed security vulnerability in a specific product, version, or component. A CVE: Identifies that a vulnerability exists Provides a stable reference ID (for example, CVE-2023-45143) Links to descriptions, technical details, and references Does not describe abstract weaknesses or attack classes CVEs are cataloged by MITRE and assigned by authorized CVE Numbering Authorities (CNAs), which include vendors, open-source projects, and security organizations.