diff --git a/src/main/java/de/florianmichael/viafabricplus/ViaFabricPlus.java b/src/main/java/de/florianmichael/viafabricplus/ViaFabricPlus.java
index a1e305e7..78ba3288 100644
--- a/src/main/java/de/florianmichael/viafabricplus/ViaFabricPlus.java
+++ b/src/main/java/de/florianmichael/viafabricplus/ViaFabricPlus.java
@@ -58,7 +58,6 @@ import java.io.File;
  *  - Blit-jump is not supported in <= 1.8.9 (https://github.com/ViaVersion/ViaFabricPlus/issues/225)
  *
  * TODO | Migration v3
- *  - Fix classic login input field (MixinSharedConstants)
  *  - Make recipe fixes dynamic instead of a data dump in java classes
  *  - Make mixin injection methods private
  *  - Make mixins abstract
@@ -67,6 +66,7 @@ import java.io.File;
  *  - Is de.florianmichael.viafabricplus.injection.mixin.jsonwebtoken.* still needed?
  *  - Apply MixinAutoRefillHandler_ItemSlotMonitor only when mod is actually installed
  *  - Make block shapes static
+ *  - Remove information package / system
  */
 public class ViaFabricPlus {
 
diff --git a/src/main/java/de/florianmichael/viafabricplus/injection/access/ITextFieldWidget.java b/src/main/java/de/florianmichael/viafabricplus/injection/access/ITextFieldWidget.java
new file mode 100644
index 00000000..bf086a0b
--- /dev/null
+++ b/src/main/java/de/florianmichael/viafabricplus/injection/access/ITextFieldWidget.java
@@ -0,0 +1,23 @@
+/*
+ * This file is part of ViaFabricPlus - https://github.com/FlorianMichael/ViaFabricPlus
+ * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package de.florianmichael.viafabricplus.injection.access;
+
+public interface ITextFieldWidget {
+
+    void viaFabricPlus$unlockForbiddenCharacters();
+}
diff --git a/src/main/java/de/florianmichael/viafabricplus/injection/mixin/base/MixinTextFieldWidget.java b/src/main/java/de/florianmichael/viafabricplus/injection/mixin/base/MixinTextFieldWidget.java
new file mode 100644
index 00000000..f90090fc
--- /dev/null
+++ b/src/main/java/de/florianmichael/viafabricplus/injection/mixin/base/MixinTextFieldWidget.java
@@ -0,0 +1,54 @@
+/*
+ * This file is part of ViaFabricPlus - https://github.com/FlorianMichael/ViaFabricPlus
+ * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package de.florianmichael.viafabricplus.injection.mixin.base;
+
+import de.florianmichael.viafabricplus.injection.access.ITextFieldWidget;
+import net.minecraft.SharedConstants;
+import net.minecraft.client.gui.widget.TextFieldWidget;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(TextFieldWidget.class)
+public class MixinTextFieldWidget implements ITextFieldWidget {
+
+    @Unique
+    private boolean viaFabricPlus$forbiddenCharactersUnlocked = false;
+
+    @Redirect(method = "charTyped", at = @At(value = "INVOKE", target = "Lnet/minecraft/SharedConstants;isValidChar(C)Z"))
+    public boolean allowForbiddenCharacters(char c) {
+        if (this.viaFabricPlus$forbiddenCharactersUnlocked) {
+            return true;
+        }
+        return SharedConstants.isValidChar(c);
+    }
+
+    @Redirect(method = "write", at = @At(value = "INVOKE", target = "Lnet/minecraft/SharedConstants;stripInvalidChars(Ljava/lang/String;)Ljava/lang/String;"))
+    public String allowForbiddenCharacters(String string) {
+        if (this.viaFabricPlus$forbiddenCharactersUnlocked) {
+            return string;
+        }
+        return SharedConstants.stripInvalidChars(string);
+    }
+
+    @Override
+    public void viaFabricPlus$unlockForbiddenCharacters() {
+        this.viaFabricPlus$forbiddenCharactersUnlocked = true;
+    }
+}
diff --git a/src/main/java/de/florianmichael/viafabricplus/screen/classic4j/classicube/ClassiCubeLoginScreen.java b/src/main/java/de/florianmichael/viafabricplus/screen/classic4j/classicube/ClassiCubeLoginScreen.java
index e0f8fe41..b4f6ad88 100644
--- a/src/main/java/de/florianmichael/viafabricplus/screen/classic4j/classicube/ClassiCubeLoginScreen.java
+++ b/src/main/java/de/florianmichael/viafabricplus/screen/classic4j/classicube/ClassiCubeLoginScreen.java
@@ -21,6 +21,7 @@ import com.mojang.blaze3d.systems.RenderSystem;
 import de.florianmichael.classic4j.ClassiCubeHandler;
 import de.florianmichael.classic4j.api.LoginProcessHandler;
 import de.florianmichael.classic4j.model.classicube.account.CCAccount;
+import de.florianmichael.viafabricplus.injection.access.ITextFieldWidget;
 import de.florianmichael.viafabricplus.screen.VFPScreen;
 import de.florianmichael.viafabricplus.definition.account.ClassiCubeAccountHandler;
 import de.florianmichael.viafabricplus.screen.common.ProtocolSelectionScreen;
@@ -66,6 +67,9 @@ public class ClassiCubeLoginScreen extends VFPScreen {
         nameField.setMaxLength(Integer.MAX_VALUE);
         passwordField.setMaxLength(Integer.MAX_VALUE);
 
+        ((ITextFieldWidget) nameField).viaFabricPlus$unlockForbiddenCharacters();
+        ((ITextFieldWidget) passwordField).viaFabricPlus$unlockForbiddenCharacters();
+
         nameField.setText(ClassiCubeAccountHandler.INSTANCE.getUsername());
         passwordField.setText(ClassiCubeAccountHandler.INSTANCE.getPassword());
 
diff --git a/src/main/resources/viafabricplus.mixins.json b/src/main/resources/viafabricplus.mixins.json
index 0ade9436..f645f46c 100644
--- a/src/main/resources/viafabricplus.mixins.json
+++ b/src/main/resources/viafabricplus.mixins.json
@@ -20,6 +20,7 @@
     "base.MixinMultiplayerServerListWidget_ServerEntry",
     "base.MixinOptionsScreen",
     "base.MixinServerInfo",
+    "base.MixinTextFieldWidget",
     "classic4j.MixinCCAuthenticationResponse",
     "compat.ipnext.MixinAutoRefillHandler_ItemSlotMonitor",
     "fixes.authlib.MixinKeyPairResponse",