diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f66524eaf..1167bce455 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@
 
 * Uploaded SVGs now permit `<use>` tags granted their `xlink:href` property is a local reference and begins with the `#` character. This improves SVG support while mitgating XSS vulnerabilities.
 * Default properties of object fields present in a widget now populate correctly even if never focused in the editor.
+* Ensure parked fields are not modified for parked pages when not configured in `_defaults`.
 
 ## 4.7.0 (2024-09-05)
 
diff --git a/modules/@apostrophecms/page/index.js b/modules/@apostrophecms/page/index.js
index c26eb59f5a..fe3afa5c9f 100644
--- a/modules/@apostrophecms/page/index.js
+++ b/modules/@apostrophecms/page/index.js
@@ -846,6 +846,21 @@ module.exports = {
   },
   handlers(self) {
     return {
+      '@apostrophecms/page-type:beforeSave': {
+        handleParkedFieldsOverride(req, doc) {
+          if (!doc.parkedId) {
+            return;
+          }
+          const parked = self.parked.find(p => p.parkedId === doc.parkedId);
+          if (!parked) {
+            return;
+          }
+          const parkedFields = Object.keys(parked).filter(field => field !== '_defaults');
+          for (const parkedField of parkedFields) {
+            doc[parkedField] = parked[parkedField];
+          }
+        }
+      },
       beforeSend: {
         async addLevelAttributeToBody(req) {
           // Add level as a data attribute on the body tag
diff --git a/test/content-i18n.js b/test/content-i18n.js
index f15f9c719a..b1f46c4743 100644
--- a/test/content-i18n.js
+++ b/test/content-i18n.js
@@ -96,7 +96,7 @@ describe('content-i18n', function() {
     peoplePageFrCA = await apos.page.find(frCAReq, {
       parkedId: 'people'
     }).toObject();
-    assert(peoplePageFrCA.title === 'Altered');
+    assert(peoplePageFrCA.title === 'People');
   });
 
   let home;
diff --git a/test/events2.js b/test/events2.js
index 0121e7a216..15c9f37a3b 100644
--- a/test/events2.js
+++ b/test/events2.js
@@ -45,10 +45,12 @@ describe('Promisified Events: @apostrophecms/doc-type:beforeInsert', function()
               {
                 type: 'default-page',
                 findMeAgain: true,
-                title: 'Test',
                 slug: '/test',
                 visibility: 'public',
-                parkedId: 'test'
+                parkedId: 'test',
+                _defaults: {
+                  title: 'Test'
+                }
               }
             ]
           }
diff --git a/test/parked-pages.js b/test/parked-pages.js
index bfddfcccca..2f96d1e344 100644
--- a/test/parked-pages.js
+++ b/test/parked-pages.js
@@ -271,6 +271,81 @@ describe('Parked Pages', function() {
     });
     await validate(apos6, [ '/', '/archive', '/default1', '/default2', '/default3', '/default3/child1' ]);
   });
+
+  it('field override on save is possible only when it is configured as default', async function () {
+    this.timeout(20000);
+    await t.destroy(apos6);
+    apos6 = await t.create({
+      root: module,
+      modules: {
+        '@apostrophecms/page': {
+          options: {
+            park: [
+              ...park2,
+              {
+                parkedId: 'default3',
+                type: 'default-page',
+                title: 'Default 3',
+                slug: '/default3'
+              },
+              {
+                parkedId: 'default4',
+                type: 'default-page',
+                title: 'Default 4',
+                _defaults: {
+                  slug: '/default4'
+                }
+              }
+            ]
+          }
+        },
+        'default-page': {}
+      }
+    });
+    const manager = apos6.doc.getManager('default-page');
+    const req = apos.task.getReq({ mode: 'draft' });
+
+    // slug override not possible, slug is NOT configured in defaults
+    {
+      const page = await manager.find(req, {
+        parkedId: 'default3',
+        aposMode: 'draft'
+      }).toObject();
+      assert.strictEqual(page.slug, '/default3');
+      assert.deepStrictEqual(page.parked, [ 'parkedId', 'type', 'title', 'slug' ]);
+
+      page.slug = '/default3-overridden';
+      await manager.update(req, page);
+      const updated = await manager.find(req, {
+        parkedId: 'default3',
+        aposMode: 'draft'
+      }).toObject();
+
+      assert.strictEqual(updated.slug, '/default3');
+    }
+
+    // slug override is possible because slug is configured in defaults
+    {
+      const page = await manager.find(req, {
+        parkedId: 'default4',
+        aposMode: 'draft'
+      }).toObject();
+      assert.strictEqual(page.slug, '/default4');
+      assert.deepStrictEqual(page.parked, [ 'parkedId', 'type', 'title' ]);
+
+      page.slug = '/default4-overridden';
+      await manager.update(req, page);
+      const updated = await manager.find(req, {
+        parkedId: 'default4',
+        aposMode: 'draft'
+      }).toObject();
+
+      assert.strictEqual(updated.slug, '/default4-overridden');
+    }
+
+    await t.destroy(apos6);
+    apos6 = null;
+  });
 });
 
 async function validate(apos, expected) {