diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 34442e983d..21c8adc0ce 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -1420,16 +1420,6 @@ parameters:
 			count: 1
 			path: src/Controllers/Database/CentralColumnsController.php
 
-		-
-			message: "#^Parameter \\#1 \\$colName of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:addNewColumn\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#1 \\$colName of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
 		-
 			message: "#^Parameter \\#1 \\$database of method PhpMyAdmin\\\\Database\\\\CentralColumns\\:\\:deleteColumnsFromList\\(\\) expects string, mixed given\\.$#"
 			count: 1
@@ -1440,121 +1430,11 @@ parameters:
 			count: 1
 			path: src/Controllers/Database/CentralColumnsController.php
 
-		-
-			message: "#^Parameter \\#1 \\$totalRows of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:main\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#10 \\$collation of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#2 \\$colDefault of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:addNewColumn\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#2 \\$fieldSelect of method PhpMyAdmin\\\\Database\\\\CentralColumns\\:\\:syncUniqueColumns\\(\\) expects array\\<string\\>, array\\<int, mixed\\> given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#2 \\$origColName of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#2 \\$position of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:main\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
 		-
 			message: "#^Parameter \\#2 \\$selectedDb of method PhpMyAdmin\\\\Database\\\\CentralColumns\\:\\:getHtmlForEditingPage\\(\\) expects string, mixed given\\.$#"
 			count: 1
 			path: src/Controllers/Database/CentralColumnsController.php
 
-		-
-			message: "#^Parameter \\#2 \\$table of method PhpMyAdmin\\\\Database\\\\CentralColumns\\:\\:getListRaw\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#3 \\$colDefault of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#3 \\$colDefaultSel of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:addNewColumn\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#4 \\$colDefaultSel of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#4 \\$colExtra of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:addNewColumn\\(\\) expects string\\|null, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#4 \\$containingTable of method PhpMyAdmin\\\\Database\\\\CentralColumns\\:\\:syncUniqueColumns\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#5 \\$colExtra of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string\\|null, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#5 \\$colIsNull of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:addNewColumn\\(\\) expects string\\|null, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#6 \\$colIsNull of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string\\|null, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#6 \\$colLength of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:addNewColumn\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#7 \\$colAttribute of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:addNewColumn\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#7 \\$colLength of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#8 \\$colAttribute of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#8 \\$colType of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:addNewColumn\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#9 \\$colType of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:editSave\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
-		-
-			message: "#^Parameter \\#9 \\$collation of method PhpMyAdmin\\\\Controllers\\\\Database\\\\CentralColumnsController\\:\\:addNewColumn\\(\\) expects string, mixed given\\.$#"
-			count: 1
-			path: src/Controllers/Database/CentralColumnsController.php
-
 		-
 			message: "#^Cannot access offset string on mixed\\.$#"
 			count: 1
diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index 62ecb5480e..a1814ee622 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -853,33 +853,7 @@
       <code><![CDATA[$params['col_name']]]></code>
       <code><![CDATA[$params['db']]]></code>
       <code><![CDATA[$params['db']]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_attribute')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_attribute')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_default')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_default')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_default_sel')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_default_sel')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_extra')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_extra')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_isNull')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_isNull')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_length')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_length')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_name')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_name')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_type')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('col_type')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('collation')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('collation')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('cur_table', '')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('orig_col_name')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('pos', '')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('table-select')]]></code>
-      <code><![CDATA[$request->getParsedBodyParam('total_rows', '')]]></code>
     </MixedArgument>
-    <MixedArgumentTypeCoercion>
-      <code><![CDATA[[$request->getParsedBodyParam('column-select')]]]></code>
-    </MixedArgumentTypeCoercion>
     <MixedAssignment>
       <code><![CDATA[$GLOBALS['message']]]></code>
     </MixedAssignment>
diff --git a/src/Controllers/ColumnController.php b/src/Controllers/ColumnController.php
index cf349d25ab..f2c7493047 100644
--- a/src/Controllers/ColumnController.php
+++ b/src/Controllers/ColumnController.php
@@ -18,10 +18,8 @@ final class ColumnController implements InvocableController
 
     public function __invoke(ServerRequest $request): Response
     {
-        /** @var string|null $db */
-        $db = $request->getParsedBodyParam('db');
-        /** @var string|null $table */
-        $table = $request->getParsedBodyParam('table');
+        $db = $request->getParsedBodyParamAsStringOrNull('db');
+        $table = $request->getParsedBodyParamAsStringOrNull('table');
 
         if (! isset($db, $table)) {
             $this->response->setRequestStatus(false);
diff --git a/src/Controllers/Database/CentralColumnsController.php b/src/Controllers/Database/CentralColumnsController.php
index 2e9bc76afc..0d6957ac91 100644
--- a/src/Controllers/Database/CentralColumnsController.php
+++ b/src/Controllers/Database/CentralColumnsController.php
@@ -38,16 +38,16 @@ final class CentralColumnsController implements InvocableController
 
         if ($request->hasBodyParam('edit_save')) {
             $this->response->addHTML((string) $this->editSave(
-                $request->getParsedBodyParam('col_name'),
-                $request->getParsedBodyParam('orig_col_name'),
-                $request->getParsedBodyParam('col_default'),
-                $request->getParsedBodyParam('col_default_sel'),
-                $request->getParsedBodyParam('col_extra'),
-                $request->getParsedBodyParam('col_isNull'),
-                $request->getParsedBodyParam('col_length'),
-                $request->getParsedBodyParam('col_attribute'),
-                $request->getParsedBodyParam('col_type'),
-                $request->getParsedBodyParam('collation'),
+                $request->getParsedBodyParamAsString('col_name'),
+                $request->getParsedBodyParamAsString('orig_col_name'),
+                $request->getParsedBodyParamAsString('col_default'),
+                $request->getParsedBodyParamAsString('col_default_sel'),
+                $request->getParsedBodyParamAsStringOrNull('col_extra'),
+                $request->getParsedBodyParamAsStringOrNull('col_isNull'),
+                $request->getParsedBodyParamAsString('col_length'),
+                $request->getParsedBodyParamAsString('col_attribute'),
+                $request->getParsedBodyParamAsString('col_type'),
+                $request->getParsedBodyParamAsString('collation'),
                 $db,
             ));
 
@@ -56,15 +56,15 @@ final class CentralColumnsController implements InvocableController
 
         if ($request->hasBodyParam('add_new_column')) {
             $tmpMsg = $this->addNewColumn(
-                $request->getParsedBodyParam('col_name'),
-                $request->getParsedBodyParam('col_default'),
-                $request->getParsedBodyParam('col_default_sel'),
-                $request->getParsedBodyParam('col_extra'),
-                $request->getParsedBodyParam('col_isNull'),
-                $request->getParsedBodyParam('col_length'),
-                $request->getParsedBodyParam('col_attribute'),
-                $request->getParsedBodyParam('col_type'),
-                $request->getParsedBodyParam('collation'),
+                $request->getParsedBodyParamAsString('col_name'),
+                $request->getParsedBodyParamAsString('col_default'),
+                $request->getParsedBodyParamAsString('col_default_sel'),
+                $request->getParsedBodyParamAsStringOrNull('col_extra'),
+                $request->getParsedBodyParamAsStringOrNull('col_isNull'),
+                $request->getParsedBodyParamAsString('col_length'),
+                $request->getParsedBodyParamAsString('col_attribute'),
+                $request->getParsedBodyParamAsString('col_type'),
+                $request->getParsedBodyParamAsString('collation'),
                 $db,
             );
         }
@@ -72,7 +72,7 @@ final class CentralColumnsController implements InvocableController
         if ($request->hasBodyParam('getColumnList')) {
             $this->response->addJSON('message', $this->centralColumns->getListRaw(
                 $db->getName(),
-                $request->getParsedBodyParam('cur_table', ''),
+                $request->getParsedBodyParamAsString('cur_table', ''),
             ));
 
             return $this->response->response();
@@ -81,9 +81,9 @@ final class CentralColumnsController implements InvocableController
         if ($request->hasBodyParam('add_column')) {
             $tmpMsg = $this->centralColumns->syncUniqueColumns(
                 DatabaseName::from($request->getParsedBodyParam('db')),
-                [$request->getParsedBodyParam('column-select')],
+                [$request->getParsedBodyParamAsString('column-select')],
                 false,
-                $request->getParsedBodyParam('table-select'),
+                $request->getParsedBodyParamAsString('table-select'),
             );
         }
 
@@ -130,8 +130,8 @@ final class CentralColumnsController implements InvocableController
         }
 
         $this->main(
-            $request->getParsedBodyParam('pos', ''),
-            $request->getParsedBodyParam('total_rows', ''),
+            $request->getParsedBodyParamAsString('pos', ''),
+            $request->getParsedBodyParamAsString('total_rows', ''),
             $db,
         );
 
diff --git a/src/Http/ServerRequest.php b/src/Http/ServerRequest.php
index 61ceb7e489..1baea1810d 100644
--- a/src/Http/ServerRequest.php
+++ b/src/Http/ServerRequest.php
@@ -8,6 +8,7 @@ use Fig\Http\Message\RequestMethodInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Message\StreamInterface;
 use Psr\Http\Message\UriInterface;
+use Webmozart\Assert\Assert;
 
 use function is_array;
 use function is_object;
@@ -307,4 +308,20 @@ class ServerRequest implements ServerRequestInterface
         return $this->serverRequest->getHeaderLine('X-Requested-With') === 'XMLHttpRequest'
             || $this->has('ajax_request');
     }
+
+    public function getParsedBodyParamAsString(string $param, string|null $default = null): string
+    {
+        $value = $this->getParsedBodyParam($param, $default);
+        Assert::string($value);
+
+        return $value;
+    }
+
+    public function getParsedBodyParamAsStringOrNull(string $param, string|null $default = null): string|null
+    {
+        $value = $this->getParsedBodyParam($param, $default);
+        Assert::nullOrString($value);
+
+        return $value;
+    }
 }