diff --git a/csharp/ql/lib/change-notes/2024-12-18-blazor-attribute-sources.md b/csharp/ql/lib/change-notes/2024-12-18-blazor-attribute-sources.md
new file mode 100644
index 000000000000..5a48753b259f
--- /dev/null
+++ b/csharp/ql/lib/change-notes/2024-12-18-blazor-attribute-sources.md
@@ -0,0 +1,6 @@
+---
+category: minorAnalysis
+---
+* Added `remote` flow source models for properties of Blazor components annotated with any of the following attributes from `Microsoft.AspNetCore.Components`:
+  - `[SupplyParameterFromForm]`
+  - `[SupplyParameterFromQuery]`
diff --git a/csharp/ql/lib/ext/Microsoft.AspNetCore.Components.model.yml b/csharp/ql/lib/ext/Microsoft.AspNetCore.Components.model.yml
index e0609a8fcb8c..396fca44dd37 100644
--- a/csharp/ql/lib/ext/Microsoft.AspNetCore.Components.model.yml
+++ b/csharp/ql/lib/ext/Microsoft.AspNetCore.Components.model.yml
@@ -5,6 +5,8 @@ extensions:
     data:
       - ["Microsoft.AspNetCore.Components", "NavigationManager", True, "get_BaseUri", "", "", "ReturnValue", "remote", "manual"]
       - ["Microsoft.AspNetCore.Components", "NavigationManager", True, "get_Uri", "", "", "ReturnValue", "remote", "manual"]
+      - ["Microsoft.AspNetCore.Components", "SupplyParameterFromFormAttribute", False, "", "", "Attribute.Getter", "ReturnValue", "remote", "manual"]
+      - ["Microsoft.AspNetCore.Components", "SupplyParameterFromQueryAttribute", False, "", "", "Attribute.Getter", "ReturnValue", "remote", "manual"]
   - addsTo:
       pack: codeql/csharp-all
       extensible: summaryModel