content security policy

About this tag
Content Security Policy (CSP) is a browser security mechanism that helps prevent cross-site scripting (XSS) and other code injection attacks by controlling which resources can be loaded on a web page. On WindowsForum.com, discussions cover CSP enforcement in Microsoft Entra ID sign-in pages, which will block external scripts by October 2026 as part of Microsoft's Secure Future Initiative. Other threads address CSP bypass vulnerabilities in Chromium-based browsers like Chrome and Edge, including CVE-2025-9866 and CVE-2025-6556, which allow attackers to bypass CSP via crafted HTML pages. These topics are relevant for IT administrators and security professionals managing Windows environments and web application security.
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    CVE-2026-14076: Patch Chrome 150 to Fix CSP Policy Enforcement Flaw

    Google published CVE-2026-14076 on June 30, 2026, documenting a low-severity Chromium Network policy-enforcement flaw fixed in Chrome 150.0.7871.47 that could let a remote attacker bypass Content Security Policy through a crafted HTML page. The bug is not a headline-grabbing zero-day, and...
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    Microsoft Entra CSP Blocks External Scripts on Sign-In Pages by Oct 2026

    Microsoft is rolling out a hardline browser security change for Microsoft Entra ID sign-ins that will block most externally injected scripts on pages that start with login.microsoftonline.com, enforcing a Content Security Policy (CSP) designed to stop script-injection and cross-site scripting...
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    CVE-2025-9866: Chromium Extensions CSP Bypass and Patch Guide

    Google's Chromium project has logged a serious security issue — tracked as CVE-2025-9866 — describing an inappropriate implementation in Extensions that can be weaponized to bypass Content Security Policy (CSP) via a crafted HTML page; Google has issued a Chrome stable update to remediate the...
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    CVE-2025-6556 Exploit: How Chromium Vulnerability Affects Chrome and Edge Security

    In June 2025, a security vulnerability identified as CVE-2025-6556 was disclosed, affecting Google Chrome's Loader component. This flaw, stemming from insufficient policy enforcement, allowed remote attackers to bypass content security policies via crafted HTML pages. While Google Chrome...
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    EchoLeak: The Zero-Click AI Data Exfiltration Threat & How to Protect Your Business

    Microsoft’s relentless push to embed AI deeply within the workplace has rapidly transformed its Microsoft 365 Copilot offering from a novel productivity assistant into an indispensable tool driving modern enterprise creativity. But as recent events around the EchoLeak vulnerability have made...
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    Securing AVEVA PI Web API: Mitigating Cross-Site Scripting Vulnerability CVE-2025-2745

    Industrial infrastructures rely on real-time insights, unfettered data flows, and the seamless orchestration of diverse operational technologies. Few platforms are as pivotal in this ecosystem as AVEVA’s PI Web API, a powerful portal that bridges operational data with enterprise applications and...
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    EchoLeak: Critical Security Flaw in Microsoft Copilot Exposes Sensitive Data

    In recent developments, cybersecurity researchers have uncovered a critical vulnerability in Microsoft Copilot, an AI-powered assistant integrated into Office applications such as Word, Excel, Outlook, and Teams. Dubbed "EchoLeak," this flaw enables attackers to exfiltrate sensitive data from a...
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    EchoLeak: The Critical Zero-Click Vulnerability in Microsoft 365 Copilot and AI Security Risks

    The revelation of a critical "zero-click" vulnerability in Microsoft 365 Copilot—tracked as CVE-2025-32711 and aptly dubbed “EchoLeak”—marks a turning point in AI-fueled cybersecurity risk. This flaw, which scored an alarming 9.3 on the Common Vulnerability Scoring System (CVSS), demonstrates...
  9. News

    WinJS 4.0 Released

    This post was written by Josh Rennert, Program Manager, Web Apps & Frameworks team We received great feedback and insight from our WinJS 4.0-Preview, released earlier this year. Now, the time has finally arrived. With the imminent release of Windows 10, we are proud to announce WinJS 4.0. You...
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