Index: bp-blogs-classes.php
--- bp-blogs-classes.php
+++ bp-blogs-classes.php
@@ -122,7 +122,6 @@
 			$blog_ids[] = $blog->blog_id;
 		}
 
-		$blog_ids = $wpdb->escape( join( ',', (array) $blog_ids ) );
 		$paged_blogs = BP_Blogs_Blog::get_blog_extras( $paged_blogs, $blog_ids, $type );
 
 		return array( 'blogs' => $paged_blogs, 'total' => $total_blogs );
@@ -211,7 +210,7 @@
 	function search_blogs( $filter, $limit = null, $page = null ) {
 		global $wpdb, $bp;
 
-		$filter = like_escape( $wpdb->escape( $filter ) );
+		$filter = esc_sql( like_escape( $filter ) );
 
 		if ( !bp_current_user_can( 'bp_moderate' ) )
 			$hidden_sql = "AND wb.public = 1";
@@ -241,7 +240,7 @@
 	function get_by_letter( $letter, $limit = null, $page = null ) {
 		global $bp, $wpdb;
 
-		$letter = like_escape( $wpdb->escape( $letter ) );
+		$letter = esc_sql( like_escape( $letter ) );
 
 		if ( !bp_current_user_can( 'bp_moderate' ) )
 			$hidden_sql = "AND wb.public = 1";
@@ -294,6 +293,8 @@
 			}
 		}
 
+		$blog_ids = esc_sql( implode( ',', wp_parse_id_list( $blog_ids ) ) );
+
 		/* Fetch the blog description for each blog (as it may be empty we can't fetch it in the main query). */
 		$blog_descs = $wpdb->get_results( "SELECT blog_id, meta_value as description FROM {$bp->blogs->table_name_blogmeta} WHERE meta_key = 'description' AND blog_id IN ( {$blog_ids} )" );