uxss vulnerability

About this tag
A UXSS vulnerability, or Universal Cross-Site Scripting, is a browser security flaw that allows an attacker to bypass the same-origin policy and execute arbitrary scripts or HTML in the context of any web page. On WindowsForum.com, discussions focus on real-world UXSS issues such as CVE-2026-7939, a medium-severity Chrome bug in the SanitizerAPI that could enable remote script injection via crafted web pages. The tag covers patching strategies, the impact on Chromium-based browsers like Edge, and the broader implications for browser trust and web security. Users share technical details, mitigation steps, and analysis of how these vulnerabilities challenge modern browser defenses.

  1. CVE-2026-14000: Chrome 150 UXSS XML Bug—Update to 150.0.7871.47+

    Google fixed CVE-2026-14000 in the Chrome 150 stable release on June 30, 2026, after disclosing that older Chrome builds could allow a remote attacker to inject arbitrary scripts or HTML through a crafted page abusing XML handling. The flaw is rated Medium by Chromium and scored 6.1 by CISA’s...
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    • chrome security cve-2026-14000 uxss vulnerability windows administrators
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    • Forum: Security Alerts

  2. Patch Now: Chrome 150 UXSS CVE-2026-14001 (Network) for Windows Fleets

    Google Chrome before version 150.0.7871.47 contains CVE-2026-14001, a medium-severity Network component flaw disclosed on June 30, 2026, that can let a remote attacker inject arbitrary scripts or HTML through a crafted web page. The bug is not the loudest defect in Chrome 150’s enormous security...
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    • browser security chrome update uxss vulnerability windows patching
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    • Forum: Security Alerts

  3. CVE-2026-7939 Chrome UXSS: Patch SanitizerAPI to Block Script/HTML Injection

    Google assigned CVE-2026-7939 on May 6, 2026, to a medium-severity Chrome flaw in the SanitizerAPI that, before version 148.0.7778.96, could let a remote attacker inject arbitrary scripts or HTML through a crafted web page. That dry sentence is the kind of advisory language admins skim every...
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    • chrome security cve 2026-7939 sanitizerapi uxss vulnerability
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    • Forum: Security Alerts