diff --git a/src/wp-admin/css/common.css b/src/wp-admin/css/common.css
index 7cdde0ddf4..c4a2e68f88 100644
--- a/src/wp-admin/css/common.css
+++ b/src/wp-admin/css/common.css
@@ -2817,6 +2817,14 @@ div.action-links {
 	border: 1px solid #ccc;
 }
 
+#plugin-information blockquote {
+	border-left: 2px solid #ddd;
+	color: #666;
+	font-style: italic;
+	margin: 1em 0;
+	padding: 0 0 0 1em;
+}
+
 /* rtl:ignore */
 #plugin-information .review {
 	overflow: hidden; /* clearfix */
diff --git a/src/wp-admin/includes/plugin-install.php b/src/wp-admin/includes/plugin-install.php
index 0d932c2618..3314a24c90 100644
--- a/src/wp-admin/includes/plugin-install.php
+++ b/src/wp-admin/includes/plugin-install.php
@@ -480,9 +480,10 @@ function install_plugin_information() {
 		'abbr' => array( 'title' => array() ), 'acronym' => array( 'title' => array() ),
 		'code' => array(), 'pre' => array(), 'em' => array(), 'strong' => array(),
 		'div' => array( 'class' => array() ), 'span' => array( 'class' => array() ),
-		'p' => array(), 'ul' => array(), 'ol' => array(), 'li' => array(),
+		'p' => array(), 'br' => array(), 'ul' => array(), 'ol' => array(), 'li' => array(),
 		'h1' => array(), 'h2' => array(), 'h3' => array(), 'h4' => array(), 'h5' => array(), 'h6' => array(),
-		'img' => array( 'src' => array(), 'class' => array(), 'alt' => array() )
+		'img' => array( 'src' => array(), 'class' => array(), 'alt' => array() ),
+		'blockquote' => array( 'cite' => true ),
 	);
 
 	$plugins_section_titles = array(