diff --git a/config/sets/contao/contao-413.php b/config/sets/contao/contao-413.php
index d786ce6..aff9703 100644
--- a/config/sets/contao/contao-413.php
+++ b/config/sets/contao/contao-413.php
@@ -7,9 +7,11 @@
 use Contao\Controller;
 use Contao\CoreBundle\Security\ContaoCorePermissions;
 use Contao\Folder;
+use Contao\Rector\Rector\ConfigOptionToParameterRector;
 use Contao\Rector\Rector\InsertTagsServiceRector;
 use Contao\Rector\Rector\LegacyFrameworkCallToServiceCallRector;
 use Contao\Rector\Rector\SystemLanguagesToServiceRector;
+use Contao\Rector\ValueObject\ConfigOptionToParameter;
 use Contao\Rector\ValueObject\LegacyFrameworkCallToServiceCall;
 use Contao\StringUtil;
 use Patchwork\Utf8;
@@ -68,6 +70,9 @@
 
     // Contao 4.12
     $rectorConfig->rule(SystemLanguagesToServiceRector::class);
+    $rectorConfig->ruleWithConfiguration(ConfigOptionToParameterRector::class, [
+        new ConfigOptionToParameter('validImageTypes', '%contao.image.valid_extensions%'),
+    ]);
 
     // Contao 4.13
     $rectorConfig->rule(InsertTagsServiceRector::class);
diff --git a/src/Rector/ConfigOptionToParameterRector.php b/src/Rector/ConfigOptionToParameterRector.php
new file mode 100644
index 0000000..5156229
--- /dev/null
+++ b/src/Rector/ConfigOptionToParameterRector.php
@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Contao\Rector\Rector;
+
+use Contao\Config;
+use Contao\Rector\ValueObject\ConfigOptionToParameter;
+use PhpParser\Node;
+use PHPStan\Type\ObjectType;
+use Rector\Contract\Rector\ConfigurableRectorInterface;
+use Rector\Rector\AbstractRector;
+use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+use Webmozart\Assert\Assert;
+
+final class ConfigOptionToParameterRector extends AbstractRector implements ConfigurableRectorInterface
+{
+    /**
+     * @var array<ConfigOptionToParameter>
+     */
+    private array $configuration;
+
+    public function configure(array $configuration): void
+    {
+        Assert::allIsAOf($configuration, ConfigOptionToParameter::class);
+        $this->configuration = $configuration;
+    }
+
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition('Fixes deprecated config options to parameters', [
+            new CodeSample(
+                <<<'CODE_BEFORE'
+$extensions = \Contao\Config::get('validImageTypes');
+CODE_BEFORE
+                ,
+                <<<'CODE_AFTER'
+$extensions = '%contao.image.valid_extensions%';
+CODE_AFTER
+            ),
+        ]);
+    }
+
+    public function getNodeTypes(): array
+    {
+        return [
+            Node\Expr\StaticCall::class,
+            Node\Expr\MethodCall::class,
+        ];
+    }
+
+    public function refactor(Node $node): ?Node
+    {
+        foreach ($this->configuration as $config) {
+            if ($this->isStaticCall($node, Config::class, 'get', $config->getOption())) {
+                return new Node\Scalar\String_($config->getParameter());
+            }
+        }
+
+        return null;
+    }
+
+    protected function isStaticCall(Node $node, string $className, string $methodName, string $option): bool
+    {
+        return $node instanceof Node\Expr\StaticCall
+            && $this->isName($node->name, $methodName)
+            && $this->isObjectType($node->class, new ObjectType($className))
+            && $option
+        ;
+    }
+}
diff --git a/src/ValueObject/ConfigOptionToParameter.php b/src/ValueObject/ConfigOptionToParameter.php
new file mode 100644
index 0000000..ed9ee57
--- /dev/null
+++ b/src/ValueObject/ConfigOptionToParameter.php
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Contao\Rector\ValueObject;
+
+class ConfigOptionToParameter
+{
+    public function __construct(
+        private readonly string $option,
+        private readonly string $parameter,
+    ) {
+    }
+
+    public function getOption(): string
+    {
+        return $this->option;
+    }
+
+    public function getParameter(): string
+    {
+        return $this->parameter;
+    }
+}
diff --git a/tests/Rector/ConfigOptionToParameterRector/ConfigOptionToParameterRectorTest.php b/tests/Rector/ConfigOptionToParameterRector/ConfigOptionToParameterRectorTest.php
new file mode 100644
index 0000000..b21cb8e
--- /dev/null
+++ b/tests/Rector/ConfigOptionToParameterRector/ConfigOptionToParameterRectorTest.php
@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Contao\Rector\Tests\Rector\ConfigOptionToParameterRector;
+
+use Iterator;
+use PHPUnit\Framework\Attributes\DataProvider;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class ConfigOptionToParameterRectorTest extends AbstractRectorTestCase
+{
+    #[DataProvider('provideData')]
+    public function test(string $filePath): void
+    {
+        $this->doTestFile($filePath);
+    }
+
+    public static function provideData(): Iterator
+    {
+        return self::yieldFilesFromDirectory(__DIR__ . '/fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__ . '/config/config.php';
+    }
+}
diff --git a/tests/Rector/ConfigOptionToParameterRector/config/config.php b/tests/Rector/ConfigOptionToParameterRector/config/config.php
new file mode 100644
index 0000000..735f33c
--- /dev/null
+++ b/tests/Rector/ConfigOptionToParameterRector/config/config.php
@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+use Contao\Rector\Rector\ConfigOptionToParameterRector;
+use Contao\Rector\ValueObject\ConfigOptionToParameter;
+use Rector\Config\RectorConfig;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->ruleWithConfiguration(ConfigOptionToParameterRector::class, [
+        new ConfigOptionToParameter('validImageTypes', '%contao.image.valid_extensions%'),
+    ]);
+};
diff --git a/tests/Rector/ConfigOptionToParameterRector/fixture/constants.php.inc b/tests/Rector/ConfigOptionToParameterRector/fixture/constants.php.inc
new file mode 100644
index 0000000..f6bc705
--- /dev/null
+++ b/tests/Rector/ConfigOptionToParameterRector/fixture/constants.php.inc
@@ -0,0 +1,21 @@
+<?php
+
+class Foo
+{
+    public function bar()
+    {
+        $extensions = \Contao\Config::get('validImageTypes');
+    }
+}
+?>
+-----
+<?php
+
+class Foo
+{
+    public function bar()
+    {
+        $extensions = '%contao.image.valid_extensions%';
+    }
+}
+?>