diff --git a/typo3/sysext/backend/Classes/Clipboard/Clipboard.php b/typo3/sysext/backend/Classes/Clipboard/Clipboard.php
index a347102c79c324488bf4f06f42a36ff637ed7b6a..da285ad5bd45589ddc47fc60d23cc56b4684eaa4 100644
--- a/typo3/sysext/backend/Classes/Clipboard/Clipboard.php
+++ b/typo3/sysext/backend/Classes/Clipboard/Clipboard.php
@@ -708,6 +708,26 @@ class Clipboard
      * @return string JavaScript "confirm" message
      */
     public function confirmMsg($table, $rec, $type, $clElements, $columnLabel = '')
+    {
+        $message = $this->confirmMsgText($table, $rec, $type, $clElements, $columnLabel);
+        if (!empty($message)) {
+            $message = 'confirm(' . GeneralUtility::quoteJSvalue($message) . ');';
+        }
+        return $message;
+    }
+
+
+    /**
+     * Returns confirm JavaScript message
+     *
+     * @param string $table Table name
+     * @param mixed $rec For records its an array, for files its a string (path)
+     * @param string $type Type-code
+     * @param array $clElements Array of selected elements
+     * @param string $columnLabel Name of the content column
+     * @return string the text for a confirm message
+     */
+    public function confirmMsgText($table, $rec, $type, $clElements, $columnLabel = '')
     {
         if ($this->getBackendUser()->jsConfirmation(JsConfirmation::COPY_MOVE_PASTE)) {
             $labelKey = 'LLL:EXT:lang/locallang_core.xlf:mess.' . ($this->currentMode() == 'copy' ? 'copy' : 'move') . ($this->current == 'normal' ? '' : 'cb') . '_' . $type;
@@ -738,7 +758,12 @@ class Clipboard
             }
 
             // Message
-            $conf = 'confirm(' . GeneralUtility::quoteJSvalue(sprintf($msg, GeneralUtility::fixed_lgd_cs($selRecTitle, 30), GeneralUtility::fixed_lgd_cs($thisRecTitle, 30), GeneralUtility::fixed_lgd_cs($columnLabel, 30))) . ')';
+            $conf = sprintf(
+                $msg,
+                GeneralUtility::fixed_lgd_cs($selRecTitle, 30),
+                GeneralUtility::fixed_lgd_cs($thisRecTitle, 30),
+                GeneralUtility::fixed_lgd_cs($columnLabel, 30)
+            );
         } else {
             $conf = '';
         }
diff --git a/typo3/sysext/backend/Classes/View/PageLayoutView.php b/typo3/sysext/backend/Classes/View/PageLayoutView.php
index 1dfca01e1b50c34860b697bf4560934b5b7b5c0f..f88c3f0b09020463169d602db10b97e8f72601ee 100644
--- a/typo3/sysext/backend/Classes/View/PageLayoutView.php
+++ b/typo3/sysext/backend/Classes/View/PageLayoutView.php
@@ -1299,12 +1299,15 @@ class PageLayoutView extends \TYPO3\CMS\Recordlist\RecordList\AbstractDatabaseRe
             if ($pasteParams) {
                 $elFromTable = $this->clipboard->elFromTable('tt_content');
                 if (!empty($elFromTable) && $this->getPageLayoutController()->pageIsNotLockedForEditors()) {
-                    $iconsArr['paste'] = '<a href="'
-                        . htmlspecialchars($this->clipboard->pasteUrl('tt_content', $this->id, true, $pasteParams))
-                        . '" onclick="' . htmlspecialchars(('return '
-                        . $this->clipboard->confirmMsg('pages', $this->pageRecord, 'into', $elFromTable, $colName)))
-                        . '" title="' . $this->getLanguageService()->getLL('pasteIntoColumn', true) . '">'
-                        . $this->iconFactory->getIcon('actions-document-paste-into', Icon::SIZE_SMALL)->render() . '</a>';
+                    $iconsArr['paste'] =
+                        '<a href="' . htmlspecialchars($this->clipboard->pasteUrl('tt_content', $this->id, true, $pasteParams)) . '"'
+                        . ' class="t3js-modal-trigger"'
+                        . ' data-severity="warning"'
+                        . ' data-title="' . $this->getLanguageService()->getLL('pasteIntoColumn', true) . '"'
+                        . ' data-content="' . htmlspecialchars($this->clipboard->confirmMsgText('pages', $this->pageRecord, 'into', $elFromTable, $colName)) . '"'
+                        . ' title="' . $this->getLanguageService()->getLL('pasteIntoColumn', true) . '">'
+                        . $this->iconFactory->getIcon('actions-document-paste-into', Icon::SIZE_SMALL)->render()
+                        . '</a>';
                 }
             }
         }
diff --git a/typo3/sysext/filelist/Classes/Controller/FileListController.php b/typo3/sysext/filelist/Classes/Controller/FileListController.php
index 5c27c498021d2716e7e737714bdc970db6744c6a..4a1ddb0c14fa225734965c0b91547d710f81e726 100644
--- a/typo3/sysext/filelist/Classes/Controller/FileListController.php
+++ b/typo3/sysext/filelist/Classes/Controller/FileListController.php
@@ -661,11 +661,17 @@ class FileListController extends ActionController
                     $elToConfirm[$key] = $clipBoardElement->getName();
                 }
                 if ($addPasteButton) {
+                    $confirmText = $this->filelist->clipObj
+                        ->confirmMsgText('_FILE', $this->folderObject->getReadablePath(), 'into', $elToConfirm);
                     $pasteButton = $buttonBar->makeLinkButton()
-                        ->setHref($this->filelist->clipObj->pasteUrl('_FILE',
-                            $this->folderObject->getCombinedIdentifier()))
-                        ->setOnClick('return ' . $this->filelist->clipObj->confirmMsg('_FILE',
-                                $this->folderObject->getReadablePath(), 'into', $elToConfirm))
+                        ->setHref($this->filelist->clipObj
+                            ->pasteUrl('_FILE', $this->folderObject->getCombinedIdentifier()))
+                        ->setClasses('t3js-modal-trigger')
+                        ->setDataAttributes([
+                            'severity' => 'warning',
+                            'content' => $confirmText,
+                            'title' => $lang->getLL('clip_paste')
+                        ])
                         ->setTitle($lang->getLL('clip_paste'))
                         ->setIcon($iconFactory->getIcon('actions-document-paste-after', Icon::SIZE_SMALL));
                     $buttonBar->addButton($pasteButton, ButtonBar::BUTTON_POSITION_LEFT, 2);
diff --git a/typo3/sysext/filelist/Classes/FileList.php b/typo3/sysext/filelist/Classes/FileList.php
index dc33f40cd6986adde2f859a22a913e4047f6c02e..72e747adff16072be8f6bfef9d3cbc666c153ee7 100644
--- a/typo3/sysext/filelist/Classes/FileList.php
+++ b/typo3/sysext/filelist/Classes/FileList.php
@@ -367,7 +367,23 @@ class FileList extends AbstractRecordList
                             $elToConfirm[$key] = $clipBoardElement->getName();
                         }
                         if ($addPasteButton) {
-                            $cells[] = '<a class="btn btn-default" href="' . htmlspecialchars($this->clipObj->pasteUrl('_FILE', $this->folderObject->getCombinedIdentifier())) . '" onclick="return ' . htmlspecialchars($this->clipObj->confirmMsg('_FILE', $this->path, 'into', $elToConfirm)) . '" title="' . $this->getLanguageService()->getLL('clip_paste', 1) . '">' . $this->iconFactory->getIcon('actions-document-paste-after', Icon::SIZE_SMALL)->render() . '</a>';
+                            $cells[] = '<a class="btn btn-default t3js-modal-trigger"'.
+                                ' href="' . htmlspecialchars($this->clipObj->pasteUrl(
+                                    '_FILE',
+                                    $this->folderObject->getCombinedIdentifier()
+                                )) . '"'
+                                . ' data-content="' . htmlspecialchars($this->clipObj->confirmMsgText(
+                                    '_FILE',
+                                    $this->path,
+                                    'into',
+                                    $elToConfirm
+                                )) . '"'
+                                . ' data-severity="warning"'
+                                . ' data-title="' . $this->getLanguageService()->getLL('clip_paste', true) . '"'
+                                . ' title="' . $this->getLanguageService()->getLL('clip_paste', true) . '">'
+                                . $this->iconFactory->getIcon('actions-document-paste-after', Icon::SIZE_SMALL)
+                                    ->render()
+                                . '</a>';
                         }
                     }
                     if ($this->clipObj->current !== 'normal' && $iOut) {
@@ -858,7 +874,15 @@ class FileList extends AbstractRecordList
                 $elToConfirm[$key] = $clipBoardElement->getName();
             }
             if ($addPasteButton) {
-                $cells[] = '<a class="btn btn-default" href="' . htmlspecialchars($this->clipObj->pasteUrl('_FILE', $fullIdentifier)) . '" onclick="return ' . htmlspecialchars($this->clipObj->confirmMsg('_FILE', $fullName, 'into', $elToConfirm)) . '" title="' . $this->getLanguageService()->getLL('clip_pasteInto', true) . '">' . $this->iconFactory->getIcon('actions-document-paste-into', Icon::SIZE_SMALL)->render() . '</a>';
+                $cells[] = '<a class="btn btn-default t3js-modal-trigger" '
+                    . ' href="' . htmlspecialchars($this->clipObj->pasteUrl('_FILE', $fullIdentifier)) . '"'
+                    . ' data-content="' . htmlspecialchars($this->clipObj->confirmMsgText('_FILE', $fullName, 'into', $elToConfirm)) . '"'
+                    . ' data-severity="warning"'
+                    . ' data-title="' . $this->getLanguageService()->getLL('clip_pasteInto', true) . '"'
+                    . ' title="' . $this->getLanguageService()->getLL('clip_pasteInto', true) . '"'
+                    .'>'
+                    . $this->iconFactory->getIcon('actions-document-paste-into', Icon::SIZE_SMALL)->render()
+                    . '</a>';
             }
         }
         // Compile items into a DIV-element:
diff --git a/typo3/sysext/recordlist/Classes/RecordList/DatabaseRecordList.php b/typo3/sysext/recordlist/Classes/RecordList/DatabaseRecordList.php
index 047588412d56dfacd25e5cd9a43f00c8c1fbee43..5f0727ed721b2988720d6ca2e64106272e3a196e 100644
--- a/typo3/sysext/recordlist/Classes/RecordList/DatabaseRecordList.php
+++ b/typo3/sysext/recordlist/Classes/RecordList/DatabaseRecordList.php
@@ -283,10 +283,17 @@ class DatabaseRecordList extends AbstractDatabaseRecordList
             if (($localCalcPerms & Permission::PAGE_NEW || $localCalcPerms & Permission::CONTENT_EDIT) && $this->editLockPermissions()) {
                 $elFromTable = $this->clipObj->elFromTable('');
                 if (!empty($elFromTable)) {
-                    $onClick = htmlspecialchars(('return ' . $this->clipObj->confirmMsg('pages', $this->pageRow, 'into', $elFromTable)));
-                    $buttons['paste'] = '<a href="' . htmlspecialchars($this->clipObj->pasteUrl('', $this->id))
-                        . '" onclick="' . $onClick . '" title="' . $lang->getLL('clip_paste', true) . '">'
-                        . $this->iconFactory->getIcon('actions-document-paste-after', Icon::SIZE_SMALL)->render() . '</a>';
+                    $confirmText = $this->clipObj->confirmMsgText('pages', $this->pageRow, 'into', $elFromTable);
+                    $buttons['paste'] = '<a'
+                        . ' href="' . htmlspecialchars($this->clipObj->pasteUrl('', $this->id)) . '"'
+                        . ' title="' . $lang->getLL('clip_paste', true) . '"'
+                        . ' class="t3js-modal-trigger"'
+                        . ' data-severity="warning"'
+                        . ' data-title="' . $lang->getLL('clip_paste', true) . '"'
+                        . ' data-content="' . htmlspecialchars($confirmText) . '"'
+                        . '>'
+                        . $this->iconFactory->getIcon('actions-document-paste-after', Icon::SIZE_SMALL)->render()
+                        . '</a>';
                 }
             }
             // Cache
@@ -407,11 +414,16 @@ class DatabaseRecordList extends AbstractDatabaseRecordList
             if ($this->showClipboard && ($localCalcPerms & Permission::PAGE_NEW || $localCalcPerms & Permission::CONTENT_EDIT) && $this->editLockPermissions()) {
                 $elFromTable = $this->clipObj->elFromTable('');
                 if (!empty($elFromTable)) {
-                    $onClick = 'return ' . $this->clipObj->confirmMsg('pages', $this->pageRow, 'into', $elFromTable);
+                    $confirmMessage = $this->clipObj->confirmMsgText('pages', $this->pageRow, 'into', $elFromTable);
                     $pasteButton = $buttonBar->makeLinkButton()
                         ->setHref($this->clipObj->pasteUrl('', $this->id))
-                        ->setOnClick($onClick)
                         ->setTitle($lang->getLL('clip_paste'))
+                        ->setClasses('t3js-modal-trigger')
+                        ->setDataAttributes([
+                            'severity' => 'warning',
+                            'content' => $confirmMessage,
+                            'title' => $lang->getLL('clip_paste')
+                        ])
                         ->setIcon($this->iconFactory->getIcon('actions-document-paste-after', Icon::SIZE_SMALL));
                     $buttonBar->addButton($pasteButton, ButtonBar::BUTTON_POSITION_LEFT, 40);
                 }
@@ -1063,10 +1075,15 @@ class DatabaseRecordList extends AbstractDatabaseRecordList
                     $elFromTable = $this->clipObj->elFromTable($table);
                     if (!empty($elFromTable) && $this->overlayEditLockPermissions($table)) {
                         $href = htmlspecialchars($this->clipObj->pasteUrl($table, $this->id));
-                        $onClick = htmlspecialchars('return ' . $this->clipObj->confirmMsg('pages', $this->pageRow, 'into', $elFromTable));
-                        $cells['pasteAfter'] = '<a class="btn btn-default" href="' . $href . '" onclick="' . $onClick
-                            . '" title="' . $lang->getLL('clip_paste', true) . '">'
-                            . $this->iconFactory->getIcon('actions-document-paste-after', Icon::SIZE_SMALL)->render() . '</a>';
+                        $confirmMessage = $this->clipObj->confirmMsgText('pages', $this->pageRow, 'into', $elFromTable);
+                        $cells['pasteAfter'] = '<a class="btn btn-default t3js-modal-trigger"'
+                            . ' href="' . $href . '"'
+                            . ' title="' . $lang->getLL('clip_paste', true) . '"'
+                            . ' data-title="' . $lang->getLL('clip_paste', true) . '"'
+                            . ' data-content="' . htmlspecialchars($confirmMessage) . '"'
+                            . ' data-severity="warning">'
+                            . $this->iconFactory->getIcon('actions-document-paste-after', Icon::SIZE_SMALL)->render()
+                            . '</a>';
                     }
                     // If the numeric clipboard pads are enabled, display the control icons for that:
                     if ($this->clipObj->current != 'normal') {
@@ -1763,17 +1780,23 @@ class DatabaseRecordList extends AbstractDatabaseRecordList
             // IF elements are found, they can be individually ordered and are not locked by editlock, then add a "paste after" icon:
             $cells['pasteAfter'] = $isL10nOverlay || !$this->overlayEditLockPermissions($table, $row)
                 ? $this->spaceIcon
-                : '<a class="btn btn-default" href="' . htmlspecialchars($this->clipObj->pasteUrl($table, -$row['uid'])) . '" onclick="'
-                    . htmlspecialchars(('return ' . $this->clipObj->confirmMsg($table, $row, 'after', $elFromTable)))
-                    . '" title="' . $this->getLanguageService()->getLL('clip_pasteAfter', true) . '">'
+                : '<a class="btn btn-default t3js-modal-trigger"'
+                    . ' href="' . htmlspecialchars($this->clipObj->pasteUrl($table, -$row['uid'])) . '"'
+                    . ' title="' . $this->getLanguageService()->getLL('clip_pasteAfter', true) . '"'
+                    . ' data-title="' . $this->getLanguageService()->getLL('clip_pasteAfter', true) . '"'
+                    . ' data-content="' . htmlspecialchars($this->clipObj->confirmMsgText($table, $row, 'after', $elFromTable)) . '"'
+                    . ' data-severity="warning">'
                     . $this->iconFactory->getIcon('actions-document-paste-after', Icon::SIZE_SMALL)->render() . '</a>';
         }
         // Now, looking for elements in general:
         $elFromTable = $this->clipObj->elFromTable('');
         if ($table == 'pages' && !empty($elFromTable)) {
-            $cells['pasteInto'] = '<a class="btn btn-default" href="' . htmlspecialchars($this->clipObj->pasteUrl('', $row['uid']))
-                . '" onclick="' . htmlspecialchars('return ' . $this->clipObj->confirmMsg($table, $row, 'into', $elFromTable))
-                . '" title="' . $this->getLanguageService()->getLL('clip_pasteInto', true) . '">'
+            $cells['pasteInto'] = '<a class="btn btn-default t3js-modal-trigger"'
+                . ' href="' . htmlspecialchars($this->clipObj->pasteUrl('', $row['uid'])) . '"'
+                . ' title="' . $this->getLanguageService()->getLL('clip_pasteInto', true) . '"'
+                . ' data-title="' . $this->getLanguageService()->getLL('clip_pasteInto', true) . '"'
+                . ' data-content="' . htmlspecialchars($this->clipObj->confirmMsgText($table, $row, 'into', $elFromTable)) . '"'
+                . ' data-severity="warning">'
                 . $this->iconFactory->getIcon('actions-document-paste-into', Icon::SIZE_SMALL)->render() . '</a>';
         }
         /**