Windows PowerShell Now Warns When Running Invoke-WebRequest Scripts

Windows PowerShell Now Warns When Running Invoke-WebRequest Scripts: What IT Teams Need to Know

Ravi Jain
A critical security update by Microsoft for Windows PowerShell 5.1 that introduces mandatory security warnings when using the Invoke-WebRequest cmdlet, addressing a high-severity remote code execution vulnerability (CVE-2025-54100). This change requires IT teams to modify automation scripts to include the -UseBasicParsing parameter, which prevents the execution of embedded scripts during web content retrieval and avoids operational disruptions caused by new confirmation prompts. Furthermore, the text advocates for broader PowerShell security best practices, such as script signing, least privilege, and comprehensive logging, while strongly recommending migration to the more secure, modern platform of PowerShell 7. Finally, the text includes a section from a managed IT service provider, Technijian, offering professional services to help organizations manage this transition, audit scripts, and implement enhanced security frameworks in the Southern California area. ... Read More
Microsoft Teams RCE Vulnerability

Microsoft Teams RCE Vulnerability: Critical Flaw Allows Attackers to Manipulate Messages and Data

Ravi Jain
A critical security vulnerability identified as CVE-2025-53783 within Microsoft Teams, a heap-based buffer overflow flaw that could allow remote code execution and unauthorized data manipulation. While Microsoft rates the vulnerability as “Important” due to high attack complexity and the need for user interaction, the company strongly urges immediate application of the August 2025 security updates to all Teams installations. The document also highlights the broader context of enterprise messaging security, referencing historical “wormable” vulnerabilities, and emphasizes the importance of comprehensive security monitoring and user training as long-term mitigation strategies. Finally, the text introduces Technijian, an IT services provider that can assist organizations with implementing these security measures and managing their IT infrastructure. ... Read More