EUVD-2026-76247
GHSA-v529-x64v-phrj
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Network-delivered XSS with no privileges required, mandatory user click, scope change into browser context, and limited confidentiality/integrity spoofing impact with no availability effect.
Primary rating from Vendor (microsoft).
CVSS VectorNVD
Lifecycle Timeline
3DescriptionNVD
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 (CWE-79) in Microsoft Edge (Chromium-based) allows unauthenticated remote attackers to perform content spoofing by injecting malicious scripts that execute in a victim's browser after user interaction. The scope-changed vector (S:C) indicates injected scripts can affect resources beyond the immediate page context, enabling session manipulation or UI redirection. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | User interaction is required - the victim must actively navigate to or interact with attacker-controlled content in Microsoft Edge for the XSS to trigger (UI:R in CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 6.1 base score reflects a medium-severity browser XSS with scope change (S:C), low confidentiality and integrity impact, and a required user interaction (UI:R). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update Microsoft Edge (Chromium-based) to the patched version as documented in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77490. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
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
Use-after-free in Microsoft Edge (Chromium-based) enables an authenticated network attacker to achieve remote code execu
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
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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