[5.x] Prevent incompatible bulk entry moves

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Release Notes for Craft CMS 5
 
+## Unreleased
+
+- Fixed a bug where bulk entry moves could assign entries to sections that didn’t support their entry types. ([#19268](https://github.com/craftcms/cms/pull/19268))
+
 ## 5.10.11 - 2026-07-15
 
 - Added `craft\gql\base\MutationResolver::requireAllowedSite()`.

src/controllers/EntriesController.php

@@ -424,7 +424,7 @@ public function actionMoveToSectionModalData(): Response
 
                 $sectionEntryTypes = array_map(fn($et) => $et->id, $section->entryTypes);
 
-                return !empty(array_intersect($entryTypes, $sectionEntryTypes));
+                return !empty($entryTypes) && empty(array_diff($entryTypes, $sectionEntryTypes));
             })
             ->sortBy(fn(Section $section) => $section->getUiLabel())
             ->all();
@@ -491,6 +491,13 @@ public function actionMoveToSection(): Response
             }
         }
 
+        $sectionEntryTypeIds = array_map(fn($entryType) => $entryType->id, $section->getEntryTypes());
+        $entryTypeIds = array_unique(array_map(fn(Entry $entry) => $entry->typeId, $entries));
+
+        if (!empty(array_diff($entryTypeIds, $sectionEntryTypeIds))) {
+            throw new BadRequestHttpException('Not all entries have a type supported by the target section.');
+        }
+
         $errors = [];
         foreach ($entries as $entry) {
             try {

src/services/Entries.php

@@ -2214,6 +2214,12 @@ public function moveEntryToSection(Entry $entry, Section $section): bool
             throw new Exception('Attempting to move a nested element.');
         }
 
+        $sectionEntryTypeIds = array_map(fn($entryType) => $entryType->id, $section->getEntryTypes());
+
+        if (!in_array($entry->typeId, $sectionEntryTypeIds, true)) {
+            throw new Exception('Entry type is not supported by the target section.');
+        }
+
         // Ensure all fields have been normalized
         $entry->getFieldValues();