{"items":[{"id":"NVI-00012023","kind":"vulnerability","title":"Microsoft Security Advisory CVE-2026-96230 - ASP.NET Core Remote Code Execution Vulnerability","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-qjpx-jqm5-h2c4","CVE-2026-96230"],"plain_summary":"GitHub lists this reviewed advisory for Microsoft.AspNetCore.Components.WebAssembly.Server, Microsoft.AspNetCore.Components.WebAssembly.Server, Microsoft.AspNetCore.Components.WebAssembly.Server, Microsoft.AspNetCore.Components.WebAssembly.Server. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0005d51e511b8b2211982a252877701f"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-19T19:19:40.000Z","value":"8.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8b7a5e6c1d6d65c6238ef040138a25b3"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.946%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.61215. Missing scores are unknown.","source_id":"sr-0005d51e511b8b2211982a252877701f"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-8b7a5e6c1d6d65c6238ef040138a25b3","url":"https://github.com/advisories/GHSA-qjpx-jqm5-h2c4","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-qjpx-jqm5-h2c4","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:14.588Z"},{"id":"sr-0005d51e511b8b2211982a252877701f","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-96230","publisher":"FIRST EPSS","observed_at":"2026-11-04T23:33:33.081Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 10.0.0, <= 10.0.12"]},{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 11.0.0-preview.1, <= 11.0.0-rc.1"]},{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 8.0.0, <= 8.0.31"]},{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 9.0.0, <= 9.0.20"]}],"null_published_at":"2026-11-06T07:24:11.206Z","source_updated_at":"2026-10-19T19:19:40.000Z","source_disclosed_at":"2026-10-13T20:51:12.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T23:14:14.588Z"},{"id":"NVI-00012023","kind":"vulnerability","title":"Microsoft Security Advisory CVE-2026-96230 - ASP.NET Core Remote Code Execution Vulnerability","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-qjpx-jqm5-h2c4","CVE-2026-96230"],"plain_summary":"GitHub lists this reviewed advisory for Microsoft.AspNetCore.Components.WebAssembly.Server, Microsoft.AspNetCore.Components.WebAssembly.Server, Microsoft.AspNetCore.Components.WebAssembly.Server, Microsoft.AspNetCore.Components.WebAssembly.Server. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-713cb90eca58c3769f0268d5b5e870ee"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-19T19:19:40.000Z","value":"8.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8b7a5e6c1d6d65c6238ef040138a25b3"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.946%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.61117. Missing scores are unknown.","source_id":"sr-713cb90eca58c3769f0268d5b5e870ee"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-8b7a5e6c1d6d65c6238ef040138a25b3","url":"https://github.com/advisories/GHSA-qjpx-jqm5-h2c4","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-qjpx-jqm5-h2c4","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:14.588Z"},{"id":"sr-713cb90eca58c3769f0268d5b5e870ee","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-96230","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.090Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 10.0.0, <= 10.0.12"]},{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 11.0.0-preview.1, <= 11.0.0-rc.1"]},{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 8.0.0, <= 8.0.31"]},{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 9.0.0, <= 9.0.20"]}],"null_published_at":"2026-11-03T10:03:21.790Z","source_updated_at":"2026-10-19T19:19:40.000Z","source_disclosed_at":"2026-10-13T20:51:12.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T23:14:14.588Z"},{"id":"NVI-00012023","kind":"vulnerability","title":"Microsoft Security Advisory CVE-2026-96230 - ASP.NET Core Remote Code Execution Vulnerability","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-qjpx-jqm5-h2c4","CVE-2026-96230"],"plain_summary":"GitHub lists this reviewed advisory for Microsoft.AspNetCore.Components.WebAssembly.Server, Microsoft.AspNetCore.Components.WebAssembly.Server, Microsoft.AspNetCore.Components.WebAssembly.Server, Microsoft.AspNetCore.Components.WebAssembly.Server. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-19T19:19:40.000Z","value":"8.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8b7a5e6c1d6d65c6238ef040138a25b3"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-8b7a5e6c1d6d65c6238ef040138a25b3","url":"https://github.com/advisories/GHSA-qjpx-jqm5-h2c4","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-qjpx-jqm5-h2c4","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:14.588Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 10.0.0, <= 10.0.12"]},{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 11.0.0-preview.1, <= 11.0.0-rc.1"]},{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 8.0.0, <= 8.0.31"]},{"certainty":"source_listed","source_ids":["sr-8b7a5e6c1d6d65c6238ef040138a25b3"],"technology":"Microsoft.AspNetCore.Components.WebAssembly.Server","known_exclusions":[],"conditions_summary":"## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nThe Blazor WebAssembly development-server debug page can reflect unencoded exception text, allowing cross-origin script injection through the unauthenticated `/_framework/debug` endpoint used by `dotnet watch`.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/478\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))\n\n## Affected Platforms\n\n- **Platforms:** Windows, Linux, macOS\n- **Architectures:** All\n\n## Affected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ----------","public_affected_ranges":[">= 9.0.0, <= 9.0.20"]}],"null_published_at":"2026-11-01T01:03:56.623Z","source_updated_at":"2026-10-19T19:19:40.000Z","source_disclosed_at":"2026-10-13T20:51:12.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T23:14:14.588Z"}],"next_cursor":null,"snapshot_revision":"42594"}