diff --git a/wcfsetup/install/files/lib/system/gridView/AbstractGridView.class.php b/wcfsetup/install/files/lib/system/gridView/AbstractGridView.class.php
index ee322b79a7a..d5e30f2f894 100644
--- a/wcfsetup/install/files/lib/system/gridView/AbstractGridView.class.php
+++ b/wcfsetup/install/files/lib/system/gridView/AbstractGridView.class.php
@@ -2,12 +2,12 @@
 
 namespace wcf\system\gridView;
 
-use LogicException;
 use wcf\action\GridViewFilterAction;
 use wcf\data\DatabaseObject;
 use wcf\data\DatabaseObjectList;
 use wcf\event\IPsr14Event;
 use wcf\system\event\EventHandler;
+use wcf\system\gridView\filter\exception\InvalidFilterValue;
 use wcf\system\interaction\bulk\IBulkInteractionProvider;
 use wcf\system\interaction\IInteraction;
 use wcf\system\interaction\IInteractionProvider;
@@ -567,15 +567,15 @@ public function getFilterLabel(string $id): string
     {
         $column = $this->getColumn($id);
         if (!$column) {
-            throw new LogicException("Unknown column '" . $id . "'.");
+            throw new \LogicException("Unknown column '" . $id . "'.");
         }
 
         if (!$column->getFilter()) {
-            throw new LogicException("Column '" . $id . "' has no filter.");
+            throw new \LogicException("Column '" . $id . "' has no filter.");
         }
 
         if (!isset($this->activeFilters[$id])) {
-            throw new LogicException("No value for filter '" . $id . "' found.");
+            throw new \LogicException("No value for filter '" . $id . "' found.");
         }
 
         $value = $column->getFilter()->renderValue($this->activeFilters[$id]);
@@ -761,14 +761,28 @@ protected function initObjectList(): void
      */
     protected function applyFilters(): void
     {
-        foreach ($this->getActiveFilters() as $key => $value) {
+        $this->activeFilters = \array_filter($this->activeFilters, function ($value, $key) {
             $column = $this->getColumn($key);
             if (!$column) {
-                throw new LogicException("Unknown column '" . $key . "'");
+                if (\ENABLE_DEBUG_MODE) {
+                    throw new \LogicException("Filter applied for unknown column '{$key}'.");
+                } else {
+                    return false;
+                }
             }
 
-            $column->getFilter()->applyFilter($this->getObjectList(), $column->getID(), $value);
-        }
+            try {
+                $column->getFilter()->applyFilter($this->getObjectList(), $column->getID(), $value);
+            } catch (InvalidFilterValue $e) {
+                if (\ENABLE_DEBUG_MODE) {
+                    throw $e;
+                } else {
+                    return false;
+                }
+            }
+
+            return true;
+        }, \ARRAY_FILTER_USE_BOTH);
     }
 
     /**
diff --git a/wcfsetup/install/files/lib/system/gridView/filter/CategoryFilter.class.php b/wcfsetup/install/files/lib/system/gridView/filter/CategoryFilter.class.php
index aafdd6fa510..96828898eed 100644
--- a/wcfsetup/install/files/lib/system/gridView/filter/CategoryFilter.class.php
+++ b/wcfsetup/install/files/lib/system/gridView/filter/CategoryFilter.class.php
@@ -6,6 +6,7 @@
 use wcf\system\category\CategoryHandler;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\SelectFormField;
+use wcf\system\gridView\filter\exception\InvalidFilterValue;
 
 /**
  * Allows a column to be filtered on the basis of a select category.
@@ -36,9 +37,14 @@ public function getFormField(string $id, string $label): AbstractFormField
     #[\Override]
     public function applyFilter(DatabaseObjectList $list, string $id, string $value): void
     {
+        $category = CategoryHandler::getInstance()->getCategory((int)$value);
+        if ($category === null) {
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$id}' given.");
+        }
+
         $columnName = $this->getDatabaseColumnName($list, $id);
 
-        $list->getConditionBuilder()->add("{$columnName} = ?", [$value]);
+        $list->getConditionBuilder()->add("{$columnName} = ?", [$category->categoryID]);
     }
 
     #[\Override]
diff --git a/wcfsetup/install/files/lib/system/gridView/filter/DateFilter.class.php b/wcfsetup/install/files/lib/system/gridView/filter/DateFilter.class.php
index 7643e560741..772e7f5d634 100644
--- a/wcfsetup/install/files/lib/system/gridView/filter/DateFilter.class.php
+++ b/wcfsetup/install/files/lib/system/gridView/filter/DateFilter.class.php
@@ -5,6 +5,7 @@
 use wcf\data\DatabaseObjectList;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\DateRangeFormField;
+use wcf\system\gridView\filter\exception\InvalidFilterValue;
 use wcf\system\WCF;
 
 /**
@@ -32,7 +33,7 @@ public function applyFilter(DatabaseObjectList $list, string $id, string $value)
         $timestamps = $this->getTimestamps($value);
 
         if (!$timestamps['from'] && !$timestamps['to']) {
-            return;
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$id}' given.");
         }
 
         if (!$timestamps['to']) {
diff --git a/wcfsetup/install/files/lib/system/gridView/filter/NumericFilter.class.php b/wcfsetup/install/files/lib/system/gridView/filter/NumericFilter.class.php
index 16704eac69e..cb41dc21635 100644
--- a/wcfsetup/install/files/lib/system/gridView/filter/NumericFilter.class.php
+++ b/wcfsetup/install/files/lib/system/gridView/filter/NumericFilter.class.php
@@ -5,6 +5,7 @@
 use wcf\data\DatabaseObjectList;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\NumericRangeFormField;
+use wcf\system\gridView\filter\exception\InvalidFilterValue;
 
 /**
  * Filter for columns that contain numerics.
@@ -39,7 +40,7 @@ public function applyFilter(DatabaseObjectList $list, string $id, string $value)
         $values = $this->parseValue($value);
 
         if (!$values['from'] && !$values['to']) {
-            return;
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$id}' given.");
         }
 
         if (!$values['to']) {
diff --git a/wcfsetup/install/files/lib/system/gridView/filter/SelectFilter.class.php b/wcfsetup/install/files/lib/system/gridView/filter/SelectFilter.class.php
index 67aeb57176e..6b6b87a601e 100644
--- a/wcfsetup/install/files/lib/system/gridView/filter/SelectFilter.class.php
+++ b/wcfsetup/install/files/lib/system/gridView/filter/SelectFilter.class.php
@@ -5,6 +5,7 @@
 use wcf\data\DatabaseObjectList;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\SelectFormField;
+use wcf\system\gridView\filter\exception\InvalidFilterValue;
 use wcf\system\WCF;
 
 /**
@@ -39,6 +40,10 @@ public function getFormField(string $id, string $label): AbstractFormField
     #[\Override]
     public function applyFilter(DatabaseObjectList $list, string $id, string $value): void
     {
+        if (!isset($this->options[$value])) {
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$id}' given.");
+        }
+
         $columnName = $this->getDatabaseColumnName($list, $id);
 
         $list->getConditionBuilder()->add("{$columnName} = ?", [$value]);
diff --git a/wcfsetup/install/files/lib/system/gridView/filter/TimeFilter.class.php b/wcfsetup/install/files/lib/system/gridView/filter/TimeFilter.class.php
index d0ac7070fb3..151f5b403af 100644
--- a/wcfsetup/install/files/lib/system/gridView/filter/TimeFilter.class.php
+++ b/wcfsetup/install/files/lib/system/gridView/filter/TimeFilter.class.php
@@ -5,6 +5,7 @@
 use wcf\data\DatabaseObjectList;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\DateRangeFormField;
+use wcf\system\gridView\filter\exception\InvalidFilterValue;
 use wcf\system\WCF;
 
 /**
@@ -34,7 +35,7 @@ public function applyFilter(DatabaseObjectList $list, string $id, string $value)
         $timestamps = $this->getTimestamps($value);
 
         if (!$timestamps['from'] && !$timestamps['to']) {
-            return;
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$id}' given.");
         }
 
         if (!$timestamps['to']) {
diff --git a/wcfsetup/install/files/lib/system/gridView/filter/UserFilter.class.php b/wcfsetup/install/files/lib/system/gridView/filter/UserFilter.class.php
index 299e430a3f4..8271408c8fa 100644
--- a/wcfsetup/install/files/lib/system/gridView/filter/UserFilter.class.php
+++ b/wcfsetup/install/files/lib/system/gridView/filter/UserFilter.class.php
@@ -6,6 +6,7 @@
 use wcf\system\cache\runtime\UserRuntimeCache;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\user\UserFormField;
+use wcf\system\gridView\filter\exception\InvalidFilterValue;
 
 /**
  * Filter for columns that contain user ids.
@@ -28,9 +29,14 @@ public function getFormField(string $id, string $label): AbstractFormField
     #[\Override]
     public function applyFilter(DatabaseObjectList $list, string $id, string $value): void
     {
+        $user = UserRuntimeCache::getInstance()->getObject((int)$value);
+        if ($user === null) {
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$id}' given.");
+        }
+
         $columnName = $this->getDatabaseColumnName($list, $id);
 
-        $list->getConditionBuilder()->add("{$columnName} = ?", [$value]);
+        $list->getConditionBuilder()->add("{$columnName} = ?", [$user->userID]);
     }
 
     #[\Override]
diff --git a/wcfsetup/install/files/lib/system/gridView/filter/exception/InvalidFilterValue.class.php b/wcfsetup/install/files/lib/system/gridView/filter/exception/InvalidFilterValue.class.php
new file mode 100644
index 00000000000..3bb8168db4c
--- /dev/null
+++ b/wcfsetup/install/files/lib/system/gridView/filter/exception/InvalidFilterValue.class.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace wcf\system\gridView\filter\exception;
+
+/**
+ * This exception is thrown if a grid view filter has received an invalid parameter value.
+ *
+ * @author      Marcel Werk
+ * @copyright   2001-2025 WoltLab GmbH
+ * @license     GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
+ * @since       6.2
+ */
+final class InvalidFilterValue extends \RuntimeException {}
diff --git a/wcfsetup/install/files/lib/system/listView/AbstractListView.class.php b/wcfsetup/install/files/lib/system/listView/AbstractListView.class.php
index 868181d82f8..3fd2686af06 100644
--- a/wcfsetup/install/files/lib/system/listView/AbstractListView.class.php
+++ b/wcfsetup/install/files/lib/system/listView/AbstractListView.class.php
@@ -12,6 +12,7 @@
 use wcf\system\interaction\IInteractionProvider;
 use wcf\system\interaction\InteractionContextMenuComponent;
 use wcf\system\listView\filter\IListViewFilter;
+use wcf\system\listView\filter\exception\InvalidFilterValue;
 use wcf\system\request\LinkHandler;
 use wcf\system\WCF;
 
@@ -244,13 +245,27 @@ protected function getSqlOrderBy(): string
      */
     protected function applyFilters(): void
     {
-        foreach ($this->getActiveFilters() as $key => $value) {
+        $this->activeFilters = \array_filter($this->activeFilters, function ($value, $key) {
             if (!isset($this->availableFilters[$key])) {
-                throw new \LogicException("Unknown filter '" . $key . "'");
+                if (\ENABLE_DEBUG_MODE) {
+                    throw new \LogicException("Filter applied for unknown column '{$key}'.");
+                } else {
+                    return false;
+                }
             }
 
-            $this->availableFilters[$key]->applyFilter($this->getObjectList(), $value);
-        }
+            try {
+                $this->availableFilters[$key]->applyFilter($this->getObjectList(), $value);
+            } catch (InvalidFilterValue $e) {
+                if (\ENABLE_DEBUG_MODE) {
+                    throw $e;
+                } else {
+                    return false;
+                }
+            }
+
+            return true;
+        }, \ARRAY_FILTER_USE_BOTH);
     }
 
     /**
diff --git a/wcfsetup/install/files/lib/system/listView/filter/CategoryFilter.class.php b/wcfsetup/install/files/lib/system/listView/filter/CategoryFilter.class.php
index 6e3310c2b3a..58e4c7a4927 100644
--- a/wcfsetup/install/files/lib/system/listView/filter/CategoryFilter.class.php
+++ b/wcfsetup/install/files/lib/system/listView/filter/CategoryFilter.class.php
@@ -6,6 +6,7 @@
 use wcf\system\category\CategoryHandler;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\SelectFormField;
+use wcf\system\listView\filter\exception\InvalidFilterValue;
 
 /**
  * Allows a column to be filtered on the basis of a select category.
@@ -41,6 +42,11 @@ public function getFormField(): AbstractFormField
     #[\Override]
     public function applyFilter(DatabaseObjectList $list, string $value): void
     {
+        $category = CategoryHandler::getInstance()->getCategory((int)$value);
+        if ($category === null) {
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$this->id}' given.");
+        }
+
         $columnName = $this->getDatabaseColumnName($list);
 
         $list->getConditionBuilder()->add("{$columnName} = ?", [$value]);
diff --git a/wcfsetup/install/files/lib/system/listView/filter/DateFilter.class.php b/wcfsetup/install/files/lib/system/listView/filter/DateFilter.class.php
index f6675d78bd6..0d24c21cf79 100644
--- a/wcfsetup/install/files/lib/system/listView/filter/DateFilter.class.php
+++ b/wcfsetup/install/files/lib/system/listView/filter/DateFilter.class.php
@@ -5,6 +5,7 @@
 use wcf\data\DatabaseObjectList;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\DateRangeFormField;
+use wcf\system\listView\filter\exception\InvalidFilterValue;
 use wcf\system\WCF;
 
 /**
@@ -32,7 +33,7 @@ public function applyFilter(DatabaseObjectList $list, string $value): void
         $timestamps = $this->getTimestamps($value);
 
         if (!$timestamps['from'] && !$timestamps['to']) {
-            return;
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$this->id}' given.");
         }
 
         if (!$timestamps['to']) {
diff --git a/wcfsetup/install/files/lib/system/listView/filter/LabelFilter.class.php b/wcfsetup/install/files/lib/system/listView/filter/LabelFilter.class.php
index ecfd2f18254..1276d9352a9 100644
--- a/wcfsetup/install/files/lib/system/listView/filter/LabelFilter.class.php
+++ b/wcfsetup/install/files/lib/system/listView/filter/LabelFilter.class.php
@@ -6,6 +6,7 @@
 use wcf\data\label\group\ViewableLabelGroup;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\label\LabelFormField;
+use wcf\system\listView\filter\exception\InvalidFilterValue;
 
 /**
  * Filter that allows to filter a list view by labels.
@@ -43,6 +44,11 @@ public function getLabel(): string
     #[\Override]
     public function applyFilter(DatabaseObjectList $list, string $value): void
     {
+        $label = $this->labelGroup->getLabel((int)$value);
+        if ($label === null) {
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$this->id}' given.");
+        }
+
         $list->getConditionBuilder()->add(
             "{$list->getDatabaseTableAlias()}.{$list->getDatabaseTableIndexName()} IN (
                 SELECT  objectID
@@ -52,7 +58,7 @@ public function applyFilter(DatabaseObjectList $list, string $value): void
             )",
             [
                 $this->objectTypeID,
-                $value,
+                $label->labelID,
             ]
         );
     }
diff --git a/wcfsetup/install/files/lib/system/listView/filter/NumericFilter.class.php b/wcfsetup/install/files/lib/system/listView/filter/NumericFilter.class.php
index 4eac64fe58c..55563061e74 100644
--- a/wcfsetup/install/files/lib/system/listView/filter/NumericFilter.class.php
+++ b/wcfsetup/install/files/lib/system/listView/filter/NumericFilter.class.php
@@ -5,6 +5,7 @@
 use wcf\data\DatabaseObjectList;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\NumericRangeFormField;
+use wcf\system\listView\filter\exception\InvalidFilterValue;
 
 /**
  * Filter for columns that contain numerics.
@@ -41,7 +42,7 @@ public function applyFilter(DatabaseObjectList $list, string $value): void
         $values = $this->parseValue($value);
 
         if (!$values['from'] && !$values['to']) {
-            return;
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$this->id}' given.");
         }
 
         if (!$values['to']) {
diff --git a/wcfsetup/install/files/lib/system/listView/filter/SelectFilter.class.php b/wcfsetup/install/files/lib/system/listView/filter/SelectFilter.class.php
index b98d5e28eec..d40ade147e0 100644
--- a/wcfsetup/install/files/lib/system/listView/filter/SelectFilter.class.php
+++ b/wcfsetup/install/files/lib/system/listView/filter/SelectFilter.class.php
@@ -5,6 +5,7 @@
 use wcf\data\DatabaseObjectList;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\SelectFormField;
+use wcf\system\listView\filter\exception\InvalidFilterValue;
 use wcf\system\WCF;
 
 /**
@@ -41,6 +42,10 @@ public function getFormField(): AbstractFormField
     #[\Override]
     public function applyFilter(DatabaseObjectList $list, string $value): void
     {
+        if (!isset($this->options[$value])) {
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$this->id}' given.");
+        }
+
         $columnName = $this->getDatabaseColumnName($list);
 
         $list->getConditionBuilder()->add("{$columnName} = ?", [$value]);
diff --git a/wcfsetup/install/files/lib/system/listView/filter/TimeFilter.class.php b/wcfsetup/install/files/lib/system/listView/filter/TimeFilter.class.php
index 2d6d2e9082d..51533374b6e 100644
--- a/wcfsetup/install/files/lib/system/listView/filter/TimeFilter.class.php
+++ b/wcfsetup/install/files/lib/system/listView/filter/TimeFilter.class.php
@@ -5,6 +5,7 @@
 use wcf\data\DatabaseObjectList;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\DateRangeFormField;
+use wcf\system\listView\filter\exception\InvalidFilterValue;
 use wcf\system\WCF;
 
 /**
@@ -34,7 +35,7 @@ public function applyFilter(DatabaseObjectList $list, string $value): void
         $timestamps = $this->getTimestamps($value);
 
         if (!$timestamps['from'] && !$timestamps['to']) {
-            return;
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$this->id}' given.");
         }
 
         if (!$timestamps['to']) {
diff --git a/wcfsetup/install/files/lib/system/listView/filter/UserFilter.class.php b/wcfsetup/install/files/lib/system/listView/filter/UserFilter.class.php
index 4f44f69ad17..6948f78f2c5 100644
--- a/wcfsetup/install/files/lib/system/listView/filter/UserFilter.class.php
+++ b/wcfsetup/install/files/lib/system/listView/filter/UserFilter.class.php
@@ -6,6 +6,7 @@
 use wcf\system\cache\runtime\UserRuntimeCache;
 use wcf\system\form\builder\field\AbstractFormField;
 use wcf\system\form\builder\field\user\UserFormField;
+use wcf\system\listView\filter\exception\InvalidFilterValue;
 
 /**
  * Filter for columns that contain user ids.
@@ -28,6 +29,11 @@ public function getFormField(): AbstractFormField
     #[\Override]
     public function applyFilter(DatabaseObjectList $list, string $value): void
     {
+        $user = UserRuntimeCache::getInstance()->getObject((int)$value);
+        if ($user === null) {
+            throw new InvalidFilterValue("Invalid value '{$value}' for filter '{$this->id}' given.");
+        }
+
         $columnName = $this->getDatabaseColumnName($list);
 
         $list->getConditionBuilder()->add("{$columnName} = ?", [$value]);
diff --git a/wcfsetup/install/files/lib/system/listView/filter/exception/InvalidFilterValue.class.php b/wcfsetup/install/files/lib/system/listView/filter/exception/InvalidFilterValue.class.php
new file mode 100644
index 00000000000..779d30476c9
--- /dev/null
+++ b/wcfsetup/install/files/lib/system/listView/filter/exception/InvalidFilterValue.class.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace wcf\system\listView\filter\exception;
+
+/**
+ * This exception is thrown if a list view filter has received an invalid parameter value.
+ *
+ * @author      Marcel Werk
+ * @copyright   2001-2025 WoltLab GmbH
+ * @license     GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
+ * @since       6.2
+ */
+final class InvalidFilterValue extends \RuntimeException {}