backported some of the v0.23.0 form validators, fixes and tests

forms/validators/record_data.go

@@ -2,6 +2,7 @@ package validators
 
 import (
 	"fmt"
+	"math"
 	"net/url"
 	"regexp"
 	"strings"
@@ -159,6 +160,10 @@ func (validator *RecordDataValidator) checkNumberValue(field *schema.SchemaField
 		return nil // nothing to check (skip zero-defaults)
 	}
 
+	if math.IsInf(val, 0) || math.IsNaN(val) {
+		return validation.NewError("validation_nan", "The submitted number is not properly formatted")
+	}
+
 	options, _ := field.Options.(*schema.NumberOptions)
 
 	if options.NoDecimal && val != float64(int64(val)) {

forms/validators/record_data_test.go

@@ -248,6 +248,16 @@ func TestRecordDataValidatorValidateNumber(t *testing.T) {
 			nil,
 			[]string{"field2"},
 		},
+		{
+			"(number) check infinities and NaN",
+			map[string]any{
+				"field1": "Inf",
+				"field2": "-Inf",
+				"field4": "NaN",
+			},
+			nil,
+			[]string{"field1", "field2", "field4"},
+		},
 		{
 			"(number) check min constraint",
 			map[string]any{