diff --git a/views/classes/classes.php b/views/classes/classes.php
index 3bf2f72..2c863ae 100644
--- a/views/classes/classes.php
+++ b/views/classes/classes.php
@@ -86,14 +86,14 @@
         <div class="d-flex flex-row justify-content-center flex-wrap">
             <?php
             while ($r = pg_fetch_assoc($result)) {
-                $topicname = $r['topicname'];
+                $topicname = htmlentities($r['topicname']);
                 // Adds a zero-width space to break words after a forward slash
                 $topicname = str_replace('/', '/&#8203;', $topicname);
                 ?>
                 <div class="card text-center result-card">
                     <div class="card-body">
                         <h4 class="card-title"><?= $topicname ?></h4>
-                        <h6 class="card-subtitle text-muted"><?= $r['description'] ?></h6>
+                        <h6 class="card-subtitle text-muted"><?= htmlentities($r['description']) ?></h6>
                     </div>
                     <div class="card-footer d-flex flex-row justify-content-center">
                         <a href="/classes/view/<?= $r['classid'] ?>">
diff --git a/views/classes/classes_archives.php b/views/classes/classes_archives.php
index ad096da..e521a37 100644
--- a/views/classes/classes_archives.php
+++ b/views/classes/classes_archives.php
@@ -110,7 +110,7 @@
             if (isset($confirmDelete) && $confirmDelete && isset($class)) {
 
                 $c = pg_fetch_assoc($db->query("SELECT topicname FROM classes WHERE classid = $1", [$class]));
-                $className = $c['topicname'];
+                $className = htmlentities($c['topicname']);
 
                 ?>
                 <form class="card warning-card" method="post" action="/classes/archive">
@@ -141,8 +141,8 @@
                     ?>
                     <div class="card text-center result-card">
                         <div class="card-body">
-                            <h4 class="card-title"><?= $r['topicname'] ?></h4>
-                            <h6 class="card-subtitle text-muted"><?= $r['description'] ?></h6>
+                            <h4 class="card-title"><?= htmlentities($r['topicname']) ?></h4>
+                            <h6 class="card-subtitle text-muted"><?= htmlentities($r['description']) ?></h6>
                         </div>
                         <div class="card-footer d-flex flex-row justify-content-center">
                             <a>
diff --git a/views/classes/classes_delete.php b/views/classes/classes_delete.php
index 653e63e..7ff00e1 100644
--- a/views/classes/classes_delete.php
+++ b/views/classes/classes_delete.php
@@ -53,10 +53,10 @@
     <div class="page-wrapper">
         <form class="card warning-card" method="post" action="<?= $_SERVER['REQUEST_URI'] ?>">
             <h4 class="card-header card-title">
-                <?= $class['topicname'] ?>
+                <?= htmlentities($class['topicname']) ?>
             </h4>
             <div class="card-body">
-                You are about to delete class "<?= $class['topicname'] ?>". Are you sure
+                You are about to delete class "<?= htmlentities($class['topicname']) ?>". Are you sure
                 you want to delete this class?
             </div>
             <div class="card-footer text-right">
diff --git a/views/classes/classes_modify.php b/views/classes/classes_modify.php
index 80bcb4b..f6f4a8c 100644
--- a/views/classes/classes_modify.php
+++ b/views/classes/classes_modify.php
@@ -48,8 +48,8 @@
 
 # Validate form information, display errors if needed
 if ($_SERVER['REQUEST_METHOD'] == 'POST') {
-    $name = isset($_POST['name']) ? htmlentities(trim($_POST['name'])) : $name;
-    $desc = isset($_POST['desc']) ? htmlentities(trim($_POST['desc'])) : $desc;
+    $name = isset($_POST['name']) ? html_entity_decode(trim($_POST['name'])) : $name;
+    $desc = isset($_POST['desc']) ? html_entity_decode(trim($_POST['desc'])) : $desc;
 
     $valid = true;
 
diff --git a/views/classes/classes_view.php b/views/classes/classes_view.php
index 57308a2..91a6d01 100644
--- a/views/classes/classes_view.php
+++ b/views/classes/classes_view.php
@@ -44,7 +44,7 @@
 		</div>
     <div class="form-wrapper card view-card">
         <h4 class="card-header text-left">
-            <?php echo $class['topicname'] . ($class['df'] == 'f' ? '' : ' <span class="badge badge-secondary">Deleted</span>') ?>
+            <?= htmlentities($class['topicname']) . ($class['df'] == 'f' ? '' : ' <span class="badge badge-secondary">Deleted</span>') ?>
             <?php if (hasRole(Role::Coordinator) && $class['df'] == 'f') { ?>
                 <div class="float-right">
                     <a href="/classes/edit/<?= $id ?>"><button class="btn btn-outline-secondary btn-sm">Edit</button></a>
@@ -55,7 +55,7 @@
         <div class="card-body d-flex justify-content-center flex-column">
             <h4>Description</h4>
             <div class="d-flex justify-content-center">
-                <?= !empty($class['description']) ? $class['description'] : '<span class="font-italic">No Description</span>' ?>
+                <?= !empty($class['description']) ? htmlentities($class['description']) : '<span class="font-italic">No Description</span>' ?>
             </div>
             <br />
             <h4>Curricula</h4>
diff --git a/views/curricula/curricula.php b/views/curricula/curricula.php
index 5fc0775..0278e67 100644
--- a/views/curricula/curricula.php
+++ b/views/curricula/curricula.php
@@ -88,7 +88,7 @@
         <div class="d-flex flex-row justify-content-center flex-wrap">
             <?php
             while ($r = pg_fetch_assoc($result)) {
-                $curriculumname = $r['curriculumname'];
+                $curriculumname = htmlentities($r['curriculumname']);
                 // Adds a zero-width space to break words after a forward slash
                 $curriculumname = str_replace('/', '/&#8203;', $curriculumname);
                 ?>
diff --git a/views/curricula/curricula_add_class.php b/views/curricula/curricula_add_class.php
index 778a3f7..97a9e87 100644
--- a/views/curricula/curricula_add_class.php
+++ b/views/curricula/curricula_add_class.php
@@ -34,6 +34,7 @@
 $allTopics = $db->execute("get_other_classes", [$id]);
 
 $curriculum = pg_fetch_assoc($db->query("SELECT * FROM curricula WHERE curriculumid = $1", [$id]));
+$curriculumName = htmlentities($curriculum['curriculumname']);
 
 if ($_SERVER['REQUEST_METHOD'] == 'POST') {
     $classId = isset($_POST['class']) ? $_POST['class'] : '';
@@ -139,16 +140,17 @@
 <div class="page-wrapper">
     <?php if(isset($confirmDelete) && isset($classId)) {
         $class = pg_fetch_assoc($db->query("SELECT * FROM classes WHERE classid = $1", [$classId]));
+        $topicName = $class['topicname'];
         ?>
 
         <!-- Confirms remove class when class is referenced by attendance -->
         <form class="card warning-card" method="post" action="<?= $_SERVER['REQUEST_URI'] ?>">
             <h4 class="card-header card-title">
-                <?= $curriculum['curriculumname'] . ' - ' . $class['topicname'] ?>
+                <?= $curriculumName . ' - ' . $topicName ?>
             </h4>
             <div class="card-body">
-                The class "<?= $class['topicname'] ?>" is currently being used for attendance. Removing this class
-                from curriculum "<?= $curriculum['curriculumname'] ?>" will also remove any attendance for this
+                The class "<?= $topicName ?>" is currently being used for attendance. Removing this class
+                from curriculum "<?= $curriculumName ?>" will also remove any attendance for this
                 class in the curriculum.
                 <br /><br />
                 Are you sure you want to continue?
@@ -170,7 +172,7 @@ class in the curriculum.
                 $notification->display();
             }
             ?>
-            <h2 class="display-4 text-center" style="font-size: 34px"><?= $curriculum['curriculumname'] ?></h2>
+            <h2 class="display-4 text-center" style="font-size: 34px"><?= $curriculumName ?></h2>
             <form class="form" method="post" action="<?= $_SERVER['REQUEST_URI'] ?>" novalidate>
                 <h4>Add New Class</h4>
                 <select id="class-selector" class="form-control" name="class" required>
@@ -178,7 +180,7 @@ class in the curriculum.
                     <?php
                     while ($t = pg_fetch_assoc($allTopics)) {
                         ?>
-                        <option value="<?= $t['classid'] ?>"><?= $t['topicname'] ?></option>
+                        <option value="<?= $t['classid'] ?>"><?= htmlentities($t['topicname']) ?></option>
                         <?php
                     }
                     pg_free_result($allTopics);
@@ -196,7 +198,7 @@ class in the curriculum.
                     ?>
                     <tr>
                         <td class="align-middle">
-                            <span><?= $class['topicname'] ?></span>
+                            <span><?= htmlentities($class['topicname']) ?></span>
                         </td>
                         <td class="text-right">
                             <form class="mb-0" method="post" action="<?= $_SERVER['REQUEST_URI'] ?>">
diff --git a/views/curricula/curricula_archives.php b/views/curricula/curricula_archives.php
index feb3b1c..86f508d 100644
--- a/views/curricula/curricula_archives.php
+++ b/views/curricula/curricula_archives.php
@@ -120,10 +120,11 @@
             // Confirm Full Delete
             if (isset($confirmDelete) && $confirmDelete && isset($curriculumId)) {
                 $curriculum = pg_fetch_assoc($db->query("SELECT * FROM curricula WHERE curriculumid = $1", [$curriculumId]));
+                $curriculumName = htmlentities($curriculum['curriculumname']);
                 ?>
                 <form class="card warning-card" method="post" action="/curricula/archive">
                     <h4 class="card-header card-title">
-                        <?= $curriculum['curriculumname'] ?>
+                        <?= $curriculumName ?>
                     </h4>
                     <div class="card-body">
                         <?php
@@ -131,7 +132,7 @@
                             echo "This curriculum is currently being used for attendance. Fully deleting this curriculum will also delete the ".
                                 "attendance for this curriculum.<br /><br />Are you sure you want to continue?";
                         } else {
-                            echo "You are about to fully delete curriculum \"".$curriculum['curriculumname']."\". Are you sure you want to fully delete this curriculum?";
+                            echo "You are about to fully delete curriculum \"".$curriculumName."\". Are you sure you want to fully delete this curriculum?";
                         }
                         ?>
                     </div>
@@ -148,7 +149,7 @@
                     ?>
                     <div class="card text-center result-card">
                         <div class="card-body">
-                            <h4 class="card-title"><?= $r['curriculumname'] ?></h4>
+                            <h4 class="card-title"><?= htmlentities($r['curriculumname']) ?></h4>
                         </div>
                         <div class="card-footer d-flex flex-row justify-content-center">
                             <a>
diff --git a/views/curricula/curricula_delete.php b/views/curricula/curricula_delete.php
index c46900a..8b1f4c3 100644
--- a/views/curricula/curricula_delete.php
+++ b/views/curricula/curricula_delete.php
@@ -48,16 +48,19 @@
 }
 
 include('header.php');
+
+$curriculaName = htmlentities($curricula['curriculumname']);
+
 ?>
 
 <div class="page-wrapper">
     <form class="card warning-card" method="post" action="<?= $_SERVER['REQUEST_URI'] ?>">
         <h4 class="card-header card-title">
-            <?= $curricula['curriculumname'] ?>
+            <?= $curriculaName ?>
         </h4>
         <div class="card-body">
             <?php
-                echo "You are about to delete curriculum \"". $curricula['curriculumname'] . "\". Are you sure you want to delete this curriculum?";
+                echo "You are about to delete curriculum \"". $curriculaName . "\". Are you sure you want to delete this curriculum?";
             ?>
         </div>
         <div class="card-footer text-right">
diff --git a/views/curricula/curricula_modify.php b/views/curricula/curricula_modify.php
index b56bc34..0af2b62 100644
--- a/views/curricula/curricula_modify.php
+++ b/views/curricula/curricula_modify.php
@@ -50,8 +50,8 @@
 
 # Validate form information, display errors if needed
 if ($_SERVER['REQUEST_METHOD'] == 'POST') {
-    $name = isset($_POST['name']) ? htmlentities(trim($_POST['name'])) : $name;
-    $miss = isset($_POST['miss']) ? htmlentities($_POST['miss']) : $miss;
+    $name = isset($_POST['name']) ? html_entity_decode(trim($_POST['name'])) : $name;
+    $miss = isset($_POST['miss']) ? html_entity_decode($_POST['miss']) : $miss;
 
     $valid = true;
 
@@ -127,7 +127,7 @@
         }
         ?>
         <?php if (isset($curricula)) { ?>
-            <h2 class="display-4 text-center" style="font-size: 34px"><?= $curricula['curriculumname'] ?></h2>
+            <h2 class="display-4 text-center" style="font-size: 34px"><?= htmlentities($curricula['curriculumname']) ?></h2>
         <?php } ?>
         <form class="form" method="post" action="<?= $_SERVER['REQUEST_URI'] ?>" novalidate>
             <h4>Information</h4>
diff --git a/views/curricula/curricula_view.php b/views/curricula/curricula_view.php
index 24417c6..7bc4cb6 100644
--- a/views/curricula/curricula_view.php
+++ b/views/curricula/curricula_view.php
@@ -53,7 +53,7 @@
 		</div>
     <div class="form-wrapper card view-card">
         <h4 class="card-header text-left">
-            <?= $curricula['curriculumname'] ?>
+            <?= htmlentities($curriculaName) ?>
             <?php if (hasRole(Role::Coordinator)) { ?>
                 <div class="float-right">
                     <a href="/curricula/edit/<?= $id ?>"><button class="btn btn-outline-secondary btn-sm">Edit</button></a>
@@ -83,7 +83,7 @@
                     while($class = pg_fetch_assoc($topics)) {
                         ?>
                         <tr>
-                            <td class="pl-2 align-middle"><?= $class['topicname'] ?></td>
+                            <td class="pl-2 align-middle"><?= htmlentities($class['topicname']) ?></td>
                             <td class="pr-2 text-right">
                                 <a href="/classes/view/<?= $class['classid'] ?>">
                                     <button class="btn btn-outline-secondary btn-sm">View</button>
diff --git a/views/locations/locations.php b/views/locations/locations.php
index aad21a6..4dd7c7f 100644
--- a/views/locations/locations.php
+++ b/views/locations/locations.php
@@ -77,7 +77,7 @@
         <div class="d-flex flex-row justify-content-center flex-wrap">
             <?php
             while ($r = pg_fetch_assoc($result)) {
-                $sitename = $r['sitename'];
+                $sitename = htmlentities($r['sitename']);
                 // Adds a zero-width space to break words after a forward slash
                 $sitename = str_replace('/', '/&#8203;', $sitename);
                 ?>
@@ -87,14 +87,14 @@
                         <h6 class="card-subtitle text-muted"><?= $r['sitetype'] ?></h6>
                     </div>
                     <div class="card-footer d-flex flex-row justify-content-center">
-                        <a href="/locations/view/<?= $r['sitename'] ?>">
+                        <a href="/locations/view/<?= urlencode($r['sitename']) ?>">
                             <button class="btn btn-outline-secondary btn-sm ml-2">View</button>
                         </a>
                         <?php if (hasRole(Role::Coordinator)) { ?>
-                            <a href="/locations/edit/<?= $r['sitename'] ?>">
+                            <a href="/locations/edit/<?= urlencode($r['sitename']) ?>">
                                 <button class="btn btn-outline-secondary btn-sm ml-2">Edit</button>
                             </a>
-                            <a href="/locations/delete/<?= $r['sitename'] ?>">
+                            <a href="/locations/delete/<?= urlencode($r['sitename']) ?>">
                                 <button class="btn btn-outline-danger btn-sm ml-2">Delete</button>
                             </a>
                         <?php } ?>
diff --git a/views/locations/locations_delete.php b/views/locations/locations_delete.php
index 85de1ad..a5d3bb3 100644
--- a/views/locations/locations_delete.php
+++ b/views/locations/locations_delete.php
@@ -19,7 +19,7 @@
 array_shift($params);
 
 # Get site name from params
-$sitename = rawurldecode(implode('/', $params));
+$sitename = urldecode(rawurldecode(implode('/', $params)));
 
 $db->prepare("get_site", "SELECT * FROM sites WHERE sitename = $1");
 $result = $db->execute("get_site", [$sitename]);
@@ -79,12 +79,12 @@
     <div class="page-wrapper">
         <form class="card warning-card" method="post" action="<?= $_SERVER['REQUEST_URI'] ?>">
             <h4 class="card-header card-title">
-                <?= $site['sitename'] ?>
+                <?= htmlentities($site['sitename']) ?>
             </h4>
             <div class="card-body">
                 <?php
                 if ($notConnected) {
-                    echo "You are about to delete location \"" . $site['sitename'] . "\". Are you sure ".
+                    echo "You are about to delete location \"" . htmlentities($site['sitename']) . "\". Are you sure ".
                         "you want to delete this location?";
                 } else if (hasRole(Role::Superuser)) {
                     echo "This location is currently being used for attendance. Fully deleting this location will also delete the ".
diff --git a/views/locations/locations_modify.php b/views/locations/locations_modify.php
index 3cadbbb..3ea1c02 100644
--- a/views/locations/locations_modify.php
+++ b/views/locations/locations_modify.php
@@ -20,7 +20,7 @@
 array_shift($params);
 
 # Get site name from params
-$sitename = rawurldecode(implode('/', $params));
+$sitename = urldecode(rawurldecode(implode('/', $params)));
 
 # Prepare SQL statements for later use
 $db->prepare("get_site", "SELECT * FROM sites WHERE sitename = $1");
@@ -80,14 +80,14 @@
 
 # Validate form information, display errors if needed
 if ($_SERVER['REQUEST_METHOD'] == 'POST') {
-    $oldName = $name;
-    $name = isset($_POST['name']) ? htmlentities($_POST['name']) : $name;
-    $type = isset($_POST['type']) ? htmlentities($_POST['type']) : $type;
-    $street_address = isset($_POST['addr']) ? htmlentities($_POST['addr']) : $street_address;
-    $apartment = isset($_POST['apt']) ? htmlentities($_POST['apt']) : $apartment;
-    $city = isset($_POST['city']) ? htmlentities($_POST['city']) : $city;
-    $state = isset($_POST['state']) ? htmlentities($_POST['state']) : $state;
-    $zip = isset($_POST['zip']) ? htmlentities($_POST['zip']) : $zip;
+    $oldName = html_entity_decode($name);
+    $name = isset($_POST['name']) ? html_entity_decode($_POST['name']) : $name;
+    $type = isset($_POST['type']) ? html_entity_decode($_POST['type']) : $type;
+    $street_address = isset($_POST['addr']) ? html_entity_decode($_POST['addr']) : $street_address;
+    $apartment = isset($_POST['apt']) ? html_entity_decode($_POST['apt']) : $apartment;
+    $city = isset($_POST['city']) ? html_entity_decode($_POST['city']) : $city;
+    $state = isset($_POST['state']) ? html_entity_decode($_POST['state']) : $state;
+    $zip = isset($_POST['zip']) ? html_entity_decode($_POST['zip']) : $zip;
 
     // Logic for parsing the address into the address number and street name.
     $street_num = NULL;
@@ -155,6 +155,7 @@
                     $errorMsg = "Location with name \"$name\" already exists.";
                 }
                 $errorState = $state;
+                die(pg_result_error($res));
             }
         } else {
             $success = false;
diff --git a/views/locations/locations_view.php b/views/locations/locations_view.php
index 7c3b167..e028467 100644
--- a/views/locations/locations_view.php
+++ b/views/locations/locations_view.php
@@ -18,13 +18,13 @@
 array_shift($params);
 
 # Get topic name from params
-$sitename = rawurldecode(implode('/', $params));
+$sitename = urldecode(rawurldecode(implode('/', $params)));
 
 $result = $db->query("SELECT * FROM sites WHERE sitename = $1", [$sitename]);
 
 # If no results, class doesn't exist, redirect
 if (pg_num_rows($result) == 0) {
-    header('Location: /classes');
+    header('Location: /locations');
     die();
 }
 
@@ -50,9 +50,11 @@
 
 $full_address = (isset($address['addressnumber']) ? ($address['addressnumber'].' ') : '') .
     (isset($address['street']) ? $address['street'] : '');
+$full_address = htmlentities($full_address);
 
 if (isset($zip)) {
     $location = $zipcode['city'] . ' ' . $zipcode['state'] . ' ' . $zipcode['zipcode'];
+    $location = htmlentities($location);
 }
 
 include('header.php');
@@ -61,7 +63,7 @@
         <button class="cpca btn" onclick="goBack()"><i class="fa fa-arrow-left"></i> Back</button>
         <div class="form-wrapper card view-card">
             <h4 class="card-header text-left">
-                <?= $site['sitename'] ?>
+                <?= htmlentities($site['sitename']) ?>
                 <?php if (hasRole(Role::Coordinator)) { ?>
                     <div class="float-right">
                         <a href="/locations/edit/<?= implode('/', $params) ?>"><button class="btn btn-outline-secondary btn-sm">Edit</button></a>
@@ -82,7 +84,7 @@
                 <h4>Address</h4>
                 <div class="ml-2">
                     <p class="mb-1"><b>Street: </b><?= empty($full_address) ? 'Not specified' : $full_address ?></p>
-                    <p class="mb-1"><b>Apartment: </b><?= empty($address['aptinfo']) ? 'Not specified' : $address['aptinfo'] ?></p>
+                    <p class="mb-1"><b>Apartment: </b><?= empty($address['aptinfo']) ? 'Not specified' : htmlentities($address['aptinfo']) ?></p>
                     <p class="mb-1"><b>Location: </b><?= isset($location) ? $location : 'Not specified'  ?></p>
                 </div>
             </div>