diff --git a/core/Command/Config/System/SetConfig.php b/core/Command/Config/System/SetConfig.php
index 1b1bdc66a6e..df7343b86ea 100644
--- a/core/Command/Config/System/SetConfig.php
+++ b/core/Command/Config/System/SetConfig.php
@@ -81,6 +81,80 @@ class SetConfig extends Base {
 		return 0;
 	}
 
+	/**
+	 * @param string $value
+	 * @param string $type
+	 * @return mixed
+	 * @throws \InvalidArgumentException
+	 */
+	protected function castValue($value, $type) {
+		switch ($type) {
+			case 'integer':
+			case 'int':
+				if (!is_numeric($value)) {
+					throw new \InvalidArgumentException('Non-numeric value specified');
+				}
+				return [
+					'value' => (int)$value,
+					'readable-value' => 'integer ' . (int)$value,
+				];
+
+			case 'double':
+			case 'float':
+				if (!is_numeric($value)) {
+					throw new \InvalidArgumentException('Non-numeric value specified');
+				}
+				return [
+					'value' => (float)$value,
+					'readable-value' => 'double ' . (float)$value,
+				];
+
+			case 'boolean':
+			case 'bool':
+				$value = strtolower($value);
+				switch ($value) {
+					case 'true':
+						return [
+							'value' => true,
+							'readable-value' => 'boolean ' . $value,
+						];
+
+					case 'false':
+						return [
+							'value' => false,
+							'readable-value' => 'boolean ' . $value,
+						];
+
+					default:
+						throw new \InvalidArgumentException('Unable to parse value as boolean');
+				}
+
+				// no break
+			case 'null':
+				return [
+					'value' => null,
+					'readable-value' => 'null',
+				];
+
+			case 'string':
+				$value = (string)$value;
+				return [
+					'value' => $value,
+					'readable-value' => ($value === '') ? 'empty string' : 'string ' . $value,
+				];
+
+			case 'json':
+				$value = json_decode($value, true);
+				return [
+					'value' => $value,
+					'readable-value' => 'json ' . json_encode($value),
+				];
+
+			default:
+				throw new \InvalidArgumentException('Invalid type');
+		}
+	}
+
 	/**
 	 * @param array $configNames
 	 * @param mixed $existingValues
diff --git a/tests/Core/Command/Config/System/SetConfigTest.php b/tests/Core/Command/Config/System/SetConfigTest.php
index cf44058f670..d7ced242eb7 100644
--- a/tests/Core/Command/Config/System/SetConfigTest.php
+++ b/tests/Core/Command/Config/System/SetConfigTest.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
@@ -56,7 +57,7 @@ class SetConfigTest extends TestCase {
 	 * @param mixed $existingData
 	 * @param mixed $expectedValue
 	 */
-	public function testSet($configNames, $newValue, $existingData, $expectedValue): void {
+	public function testSet($configNames, $newValue, $existingData, $expectedValue) {
 		$this->systemConfig->expects($this->once())
 			->method('setValue')
 			->with($configNames[0], $expectedValue);
@@ -89,7 +90,7 @@ class SetConfigTest extends TestCase {
 	/**
 	 * @dataProvider setUpdateOnlyProvider
 	 */
-	public function testSetUpdateOnly($configNames, $existingData): void {
+	public function testSetUpdateOnly($configNames, $existingData) {
 		$this->expectException(\UnexpectedValueException::class);
 
 		$this->systemConfig->expects($this->never())
@@ -136,7 +137,7 @@ class SetConfigTest extends TestCase {
 	/**
 	 * @dataProvider castValueProvider
 	 */
-	public function testCastValue($value, $type, $expectedValue): void {
+	public function testCastValue($value, $type, $expectedValue) {
 		$this->assertSame($expectedValue,
 			$this->invokePrivate($this->command, 'castValue', [$value, $type])
 		);
@@ -157,7 +158,7 @@ class SetConfigTest extends TestCase {
 	/**
 	 * @dataProvider castValueInvalidProvider
 	 */
-	public function testCastValueInvalid($value, $type): void {
+	public function testCastValueInvalid($value, $type) {
 		$this->expectException(\InvalidArgumentException::class);
 
 		$this->invokePrivate($this->command, 'castValue', [$value, $type]);