diff --git a/CTFd/themes/admin/templates/teams/team.html b/CTFd/themes/admin/templates/teams/team.html
index 158b9c78..30ffdb50 100644
--- a/CTFd/themes/admin/templates/teams/team.html
+++ b/CTFd/themes/admin/templates/teams/team.html
@@ -183,7 +183,7 @@
 				<i class="btn-fa fas fa-network-wired fa-2x px-2" data-toggle="tooltip" data-placement="top" title="IP Addresses"></i>
 			</a>
 			{% if team.website %}
-			<a href="{{ team.website }}" target="_blank" class="text-dark">
+			<a href="{{ team.website }}" target="_blank" class="text-dark" rel="noopener">
 				<i class="btn-fa fas fa-external-link-alt fa-2x px-2" data-toggle="tooltip" data-placement="top"
 					title="{{ team.website }}" aria-hidden="true"></i>
 			</a>
diff --git a/CTFd/themes/admin/templates/teams/teams.html b/CTFd/themes/admin/templates/teams/teams.html
index 84e1dd3d..877971f7 100644
--- a/CTFd/themes/admin/templates/teams/teams.html
+++ b/CTFd/themes/admin/templates/teams/teams.html
@@ -99,7 +99,7 @@
 								</a>
 							{% endif %}
 							{% if team.website %}
-								<a href="{{ team.website }}" target="_blank" class="badge badge-info">
+								<a href="{{ team.website }}" target="_blank" class="badge badge-info" rel="noopener">
 									<i class="btn-fa fas fa-external-link-alt" data-toggle="tooltip" data-placement="top"
 									   title="{{ team.website }}" aria-hidden="true"></i>
 								</a>
diff --git a/CTFd/themes/admin/templates/users/user.html b/CTFd/themes/admin/templates/users/user.html
index b49b29c2..ffc0dd4e 100644
--- a/CTFd/themes/admin/templates/users/user.html
+++ b/CTFd/themes/admin/templates/users/user.html
@@ -173,7 +173,7 @@
 				<i class="btn-fa fas fa-network-wired fa-2x px-2" data-toggle="tooltip" data-placement="top" title="IP Addresses"></i>
 			</a>
 			{% if user.website %}
-			<a href="{{ user.website }}" target="_blank" class="text-decoration-none text-dark">
+			<a href="{{ user.website }}" target="_blank" class="text-decoration-none text-dark" rel="noopener">
 				<i class="btn-fa fas fa-external-link-alt fa-2x px-2" data-toggle="tooltip" data-placement="top"
 					title="{{ user.website }}" aria-hidden="true"></i>
 			</a>
diff --git a/CTFd/themes/admin/templates/users/users.html b/CTFd/themes/admin/templates/users/users.html
index 9eeca308..a432439e 100644
--- a/CTFd/themes/admin/templates/users/users.html
+++ b/CTFd/themes/admin/templates/users/users.html
@@ -102,7 +102,7 @@
 								</a>
 							{% endif %}
 							{% if user.website %}
-								<a href="{{ user.website }}" target="_blank" class="badge badge-info">
+								<a href="{{ user.website }}" target="_blank" class="badge badge-info" rel="noopener">
 									<i class="btn-fa fas fa-external-link-alt" data-toggle="tooltip" data-placement="top"
 									   title="{{ user.website }}" aria-hidden="true"></i>
 								</a>
diff --git a/CTFd/themes/core/templates/teams/private.html b/CTFd/themes/core/templates/teams/private.html
index 585af365..d51e41c8 100644
--- a/CTFd/themes/core/templates/teams/private.html
+++ b/CTFd/themes/core/templates/teams/private.html
@@ -174,7 +174,7 @@
 					{% endif %}
 				</a>
 				{% if team.website and (team.website.startswith('http://') or team.website.startswith('https://')) %}
-					<a href="{{ team.website }}" target="_blank" style="color: inherit;">
+					<a href="{{ team.website }}" target="_blank" style="color: inherit;" rel="noopener">
 						<i class="fas fa-external-link-alt fa-2x px-2" data-toggle="tooltip" data-placement="top"
 						   title="{{ team.website }}"></i>
 					</a>
diff --git a/CTFd/themes/core/templates/teams/public.html b/CTFd/themes/core/templates/teams/public.html
index 0b125bf6..de5deecb 100644
--- a/CTFd/themes/core/templates/teams/public.html
+++ b/CTFd/themes/core/templates/teams/public.html
@@ -50,7 +50,7 @@
 
 			<div class="pt-3">
 				{% if team.website and (team.website.startswith('http://') or team.website.startswith('https://')) %}
-					<a href="{{ team.website }}" target="_blank" style="color: inherit;">
+					<a href="{{ team.website }}" target="_blank" style="color: inherit;" rel="noopener">
 						<i class="fas fa-external-link-alt fa-2x px-2" data-toggle="tooltip" data-placement="top"
 						   title="{{ team.website }}"></i>
 					</a>
diff --git a/CTFd/themes/core/templates/teams/teams.html b/CTFd/themes/core/templates/teams/teams.html
index 4ea15b8e..a78b5e85 100644
--- a/CTFd/themes/core/templates/teams/teams.html
+++ b/CTFd/themes/core/templates/teams/teams.html
@@ -69,7 +69,7 @@
 						</td>
 						<td class="text-center" style="width: 10px;">
 							{% if team.website and (team.website.startswith('http://') or team.website.startswith('https://')) %}
-								<a href="{{ team.website }}" target="_blank">
+								<a href="{{ team.website }}" target="_blank" rel="noopener">
 									<i class="fas fa-external-link-alt" data-toggle="tooltip" data-placement="top" title="{{ team.website }}"></i>
 								</a>
 							{% endif %}
diff --git a/CTFd/themes/core/templates/users/private.html b/CTFd/themes/core/templates/users/private.html
index d265a3f6..d9944f58 100644
--- a/CTFd/themes/core/templates/users/private.html
+++ b/CTFd/themes/core/templates/users/private.html
@@ -60,7 +60,7 @@
 
 			<div class="pt-3">
 				{% if user.website %}
-					<a href="{{ user.website }}" target="_blank" style="color: inherit;">
+					<a href="{{ user.website }}" target="_blank" style="color: inherit;" rel="noopener">
 						<i class="fas fa-external-link-alt fa-2x px-2" data-toggle="tooltip" data-placement="top"
 						   title="{{ user.website }}"></i>
 					</a>
diff --git a/CTFd/themes/core/templates/users/public.html b/CTFd/themes/core/templates/users/public.html
index 78c5b2ea..a47c166c 100644
--- a/CTFd/themes/core/templates/users/public.html
+++ b/CTFd/themes/core/templates/users/public.html
@@ -60,7 +60,7 @@
 
 			<div class="pt-3">
 				{% if user.website %}
-					<a href="{{ user.website }}" target="_blank" style="color: inherit;">
+					<a href="{{ user.website }}" target="_blank" style="color: inherit;" rel="noopener">
 						<i class="fas fa-external-link-alt fa-2x px-2" data-toggle="tooltip" data-placement="top"
 						   title="{{ user.website }}"></i>
 					</a>
diff --git a/CTFd/themes/core/templates/users/users.html b/CTFd/themes/core/templates/users/users.html
index 23383ff5..35f3d503 100644
--- a/CTFd/themes/core/templates/users/users.html
+++ b/CTFd/themes/core/templates/users/users.html
@@ -71,7 +71,7 @@
 							</td>
 							<td class="text-center" style="width: 10px;">
 								{% if user.website and (user.website.startswith('http://') or user.website.startswith('https://')) %}
-									<a href="{{ user.website }}" target="_blank">
+									<a href="{{ user.website }}" target="_blank" rel="noopener">
 										<i class="fas fa-external-link-alt" data-toggle="tooltip" data-placement="top"
 										   title="{{ user.website }}"></i>
 									</a>