diff --git a/src/main/java/org/springframework/data/web/MapDataBinder.java b/src/main/java/org/springframework/data/web/MapDataBinder.java
index ad479f29a8..fa719d7709 100644
--- a/src/main/java/org/springframework/data/web/MapDataBinder.java
+++ b/src/main/java/org/springframework/data/web/MapDataBinder.java
@@ -43,6 +43,8 @@
 import org.springframework.expression.EvaluationContext;
 import org.springframework.expression.Expression;
 import org.springframework.expression.TypedValue;
+import org.springframework.expression.spel.SpelEvaluationException;
+import org.springframework.expression.spel.SpelMessage;
 import org.springframework.expression.spel.SpelParserConfiguration;
 import org.springframework.expression.spel.standard.SpelExpressionParser;
 import org.springframework.expression.spel.support.StandardEvaluationContext;
@@ -177,6 +179,9 @@ public void setPropertyValue(String propertyName, @Nullable Object value) throws
 			StandardEvaluationContext context = new StandardEvaluationContext();
 			context.addPropertyAccessor(new PropertyTraversingMapAccessor(type, conversionService));
 			context.setTypeConverter(new StandardTypeConverter(conversionService));
+			context.setTypeLocator(typeName -> {
+				throw new SpelEvaluationException(SpelMessage.TYPE_NOT_FOUND, typeName);
+			});
 			context.setRootObject(map);
 
 			Expression expression = PARSER.parseExpression(propertyName);
@@ -208,7 +213,11 @@ public void setPropertyValue(String propertyName, @Nullable Object value) throws
 				value = conversionService.convert(value, TypeDescriptor.forObject(value), typeDescriptor);
 			}
 
-			expression.setValue(context, value);
+			try {
+				expression.setValue(context, value);
+			} catch (SpelEvaluationException o_O) {
+				throw new NotWritablePropertyException(type, propertyName, "Could not write property!", o_O);
+			}
 		}
 
 		private boolean conversionRequired(@Nullable Object source, Class<?> targetType) {
diff --git a/src/test/java/org/springframework/data/web/MapDataBinderUnitTests.java b/src/test/java/org/springframework/data/web/MapDataBinderUnitTests.java
index 5c264b580e..0c373afa49 100755
--- a/src/test/java/org/springframework/data/web/MapDataBinderUnitTests.java
+++ b/src/test/java/org/springframework/data/web/MapDataBinderUnitTests.java
@@ -28,8 +28,11 @@
 import java.util.Map;
 
 import org.junit.Test;
+import org.springframework.beans.ConfigurablePropertyAccessor;
 import org.springframework.beans.MutablePropertyValues;
+import org.springframework.beans.NotWritablePropertyException;
 import org.springframework.beans.PropertyValues;
+import org.springframework.expression.spel.SpelEvaluationException;
 import org.springframework.format.annotation.DateTimeFormat;
 import org.springframework.format.annotation.DateTimeFormat.ISO;
 import org.springframework.format.support.DefaultFormattingConversionService;
@@ -91,7 +94,29 @@ public void skipsPropertyNotExposedByTheTypeHierarchy() {
 		MutablePropertyValues values = new MutablePropertyValues();
 		values.add("somethingWeird", "Value");
 
-		assertThat(bind(values)).isEqualTo(Collections.<String, Object> emptyMap());
+		assertThat(bind(values)).isEqualTo(Collections.emptyMap());
+	}
+
+	@Test // DATACMNS-1264
+	public void dropsMapExpressionsForCollectionReferences() {
+
+		ConfigurablePropertyAccessor accessor = new MapDataBinder(Bar.class, new DefaultFormattingConversionService())
+				.getPropertyAccessor();
+
+		assertThatExceptionOfType(NotWritablePropertyException.class) //
+				.isThrownBy(() -> accessor.setPropertyValue("fooBar['foo']", null)) //
+				.withCauseInstanceOf(SpelEvaluationException.class);
+	}
+
+	@Test // DATACMNS-1264
+	public void rejectsExpressionContainingTypeExpression() {
+
+		ConfigurablePropertyAccessor accessor = new MapDataBinder(Bar.class, new DefaultFormattingConversionService())
+				.getPropertyAccessor();
+
+		assertThatExceptionOfType(NotWritablePropertyException.class) //
+				.isThrownBy(() -> accessor.setPropertyValue("fooBar[T(java.lang.String)]", null)) //
+				.withCauseInstanceOf(SpelEvaluationException.class);
 	}
 
 	private static Map<String, Object> bind(PropertyValues values) {