EUVD-2026-41594
GHSA-8ghg-xp59-w7pg
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Network-reachable XSS needs no auth (PR:N) but requires the victim to interact (UI:R); spoofing yields limited integrity/confidentiality impact (I:L/C:L), with a scope change from the browser sandbox (S:C).
Primary rating from Vendor (microsoft).
CVSS VectorNVD
Lifecycle Timeline
10DescriptionNVD
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
AnalysisAI
Cross-site scripting in Microsoft Edge (Chromium-based) before version 150.0.4078.48 lets a remote attacker trick a victim into rendering attacker-controlled script that spoofs UI or content over the network. Because the CVSS scope is changed (S:C) and user interaction is required (UI:R), a lured user visiting or interacting with a malicious page can be deceived into trusting forged content, undermining browser security-context integrity. Reported by Microsoft with a vendor patch available; EPSS is low (0.28%, 20th percentile) and no public exploit identified at time of analysis.
Technical ContextAI
The flaw is a CWE-79 improper neutralization of input during web page generation (cross-site scripting) in the Chromium-based Microsoft Edge browser (CPE cpe:2.3:a:microsoft:microsoft_edge_(chromium-based)). Rather than a classic stored/reflected XSS in a web app, this is a browser-engine level failure to correctly neutralize or isolate content during page rendering, permitting script injection that crosses a trust boundary - reflected in the CVSS scope change (S:C). The 'Google' and 'Google, Microsoft' tags indicate the issue stems from the shared Chromium codebase that Edge is built upon, meaning the same class of rendering/neutralization defect can affect other Chromium derivatives.
RemediationAI
Vendor-released patch: update Microsoft Edge (Chromium-based) to version 150.0.4078.48 or later, per Microsoft's advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58298. In enterprise fleets, ensure Edge automatic updates are enabled or push the fixed build through your management tooling (Intune/WSUS/SCCM) and force a browser restart to apply it. As interim compensating controls before patching, restrict user browsing to trusted sites via SmartScreen/URL filtering and user education against interacting with untrusted links (the exploit requires user interaction), accepting the trade-off of reduced browsing convenience; there is no need to disable core browser features since the fix is a straightforward version upgrade.
Security-feature bypass in Microsoft Edge (Chromium-based) versions prior to 150.0.4078.48 lets a remote, unauthenticate
Remote code execution in Microsoft Edge (Chromium-based) before 151.0.4129.59 allows a network attacker to run arbitrary
Remote code execution via buffer over-read in Microsoft Edge (Chromium-based) versions prior to 151.0.4129.59 affects au
Remote code execution in Microsoft Edge (Chromium-based) prior to version 151.0.4129.59 is achievable by an unauthentica
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free memory corruption flaw (CWE-416) th
Remote code execution in Microsoft Edge (Chromium-based) allows an unauthenticated attacker to run arbitrary code by lur
Remote code execution in Microsoft Edge (Chromium-based) stems from a heap-based buffer overflow (CWE-122) that a networ
Remote code execution in Microsoft Edge (Chromium-based) is enabled by a type confusion vulnerability (CWE-843) that can
Remote code execution in Microsoft Edge (Chromium-based) before version 150.0.4078.48 allows an unauthenticated remote a
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free (CWE-416) memory-corruption flaw th
Remote code execution in Microsoft Edge (Chromium-based) lets an unauthenticated network attacker run arbitrary code by
Remote code execution in Microsoft Edge (Chromium-based) before 150.0.4078.48 allows an unauthenticated attacker to run
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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