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100+ Fake Chrome Extensions Found Hijacking Sessions, Stealing Credentials, Injecting Ads

An unknown threat actor has been attributed to creating several malicious Chrome Browser extensions since February 2024 that masquerade as seemingly benign utilities but incorporate covert functionality to exfiltrate data, receive commands, and execute arbitrary code. "The actor creates websites that masquerade as legitimate services, productivity tools, ad and media creation or analysis

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Update your Chrome to fix serious actively exploited vulnerability

Make sure your Chrome is on the latest version, to patch against an actively exploited vulnerability that can be used to steal sensitive information from websites.

Firefox Tests AI-Powered Perplexity Search Engine Directly in Browser

Mozilla Firefox experiments with AI-powered Perplexity Search Engine in its address bar for version 139, signalling a potential…

CVE-2025-4609: Chromium: CVE-2025-4609 Incorrect handle provided in unspecified circumstances in Mojo

**Why is this Chrome CVE included in the Security Update Guide?** The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable. **How can I see the version of the browser?** 1. In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window 2. Click on **Help and Feedback** 3. Click on **About Microsoft Edge**

CVE-2025-4664: Chromium: CVE-2025-4664 Insufficient policy enforcement in Loader

**Why is this Chrome CVE included in the Security Update Guide?** The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable. **How can I see the version of the browser?** 1. In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window 2. Click on **Help and Feedback** 3. Click on **About Microsoft Edge**

New Chrome Vulnerability Enables Cross-Origin Data Leak via Loader Referrer Policy

Google on Wednesday released updates to address four security issues in its Chrome web browser, including one for which it said there exists an exploit in the wild. The high-severity vulnerability, tracked as CVE-2025-4664 (CVSS score: 4.3), has been characterized as a case of insufficient policy enforcement in a component called Loader. "Insufficient policy enforcement in Loader in Google

iClicker Website Hacked with Fake CAPTCHA in ClickFix Attack

Popular student engagement platform iClicker’s website was compromised with a ClickFix attack. A fake “I’m not a robot”…

A week in security (May 4 – May 10)

A list of topics we covered in the week of May 4 to May 10 of 2025