TYPO3 Core

There is the same unquoted regexp couple of lines below in that function.

diff --git a/Classes/Utility/ExtensionManagementUtility.php b/Classes/Utility/ExtensionManagementUtility.php
index 629978dce..522399ff4 100644
--- a/Classes/Utility/ExtensionManagementUtility.php
+++ b/Classes/Utility/ExtensionManagementUtility.php
@@ -274,7 +274,7 @@ class ExtensionManagementUtility
                             switch ($positionIdentifier) {
                                 case 'after':
                                 case 'before':
-                                    if (preg_match('/\\b' . $entityName . '\\b/', $palette['showitem']) > 0 || $entityName === 'palette:' . $paletteName) {
+                                    if (preg_match('/\\b' . preg_quote($entityName, '/') . '\\b/', $palette['showitem']) > 0 || $entityName === 'palette:' . $paletteName) {
                                         $newPosition = $positionIdentifier . ':--palette--;;' . $paletteName;
                                     }
                                     break;
@@ -284,7 +284,7 @@ class ExtensionManagementUtility
                                         $fieldExists = true;
                                         continue 2;
                                     }
-                                    if (preg_match('/\\b' . $entityName . '\\b/', $palette['showitem']) > 0) {
+                                    if (preg_match('/\\b' . preg_quote($entityName, '/') . '\\b/', $palette['showitem']) > 0) {
                                         self::addFieldsToPalette($table, $paletteName, $newFieldsString, $position);
                                         // Memorize that we already changed this palette, in case other types also use it
                                         $palettesChanged[$paletteName] = true;

Patch set 2 for branch main of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/76487

Patch set 3 for branch main of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/76487

Patch set 1 for branch main of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/76488

Patch set 1 for branch 11.5 of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/76495