{"id":"CVE-2026-96230","title":"Improper neutralization of input during web page generation ('cross-site scripting') in ASP.NET Core allows an unauthorized attacker to execute code over a network.","summary":"Improper neutralization of input during web page generation ('cross-site scripting') in ASP.NET Core allows an unauthorized attacker to execute code over a network.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-79"],"vendor":"Microsoft","product":"Microsoft.AspNetCore.Components.WebAssembly.Server","affected":["Microsoft.AspNetCore.Components.WebAssembly.Server >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.Components.WebAssembly.Server >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.Components.WebAssembly.Server >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.Components.WebAssembly.Server >= 9.0.0, <= 9.0.20"],"patched":["Microsoft.AspNetCore.Components.WebAssembly.Server 10.0.13","Microsoft.AspNetCore.Components.WebAssembly.Server 11.0.0-rc.2","Microsoft.AspNetCore.Components.WebAssembly.Server 8.0.32","Microsoft.AspNetCore.Components.WebAssembly.Server 9.0.21"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T20:19:14.367","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-96230","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96230","label":"secure@microsoft.com"},{"url":"https://github.com/dotnet/aspnetcore/security/advisories/GHSA-qjpx-jqm5-h2c4"},{"url":"https://github.com/dotnet/announcements/issues/478"},{"url":"https://github.com/dotnet/aspnetcore/discussions/69802"},{"url":"https://github.com/advisories/GHSA-qjpx-jqm5-h2c4"}],"tags":["nvd","ghsa","nuget"],"aliases":["GHSA-qjpx-jqm5-h2c4"],"ecosystem":"nuget","ingestedAt":"2026-10-13T19:43:29.253Z","slug":"CVE-2026-96230","body":"## Overview\n\nImproper neutralization of input during web page generation ('cross-site scripting') in ASP.NET Core allows an unauthorized attacker to execute code over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-96230)\n\nAffected packages:\n\n- `Microsoft.AspNetCore.Components.WebAssembly.Server >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.Components.WebAssembly.Server >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.Components.WebAssembly.Server >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.Components.WebAssembly.Server >= 9.0.0, <= 9.0.20`\n\nPatched in:\n\n- `Microsoft.AspNetCore.Components.WebAssembly.Server 10.0.13`\n- `Microsoft.AspNetCore.Components.WebAssembly.Server 11.0.0-rc.2`\n- `Microsoft.AspNetCore.Components.WebAssembly.Server 8.0.32`\n- `Microsoft.AspNetCore.Components.WebAssembly.Server 9.0.21`\n\nSource: https://github.com/advisories/GHSA-qjpx-jqm5-h2c4","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}