From 1db061934835099afe7c7e371829ba0d2e2fd174 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@git.wordpress.org>
Date: Fri, 19 Sep 2025 12:22:23 +0000
Subject: [PATCH] General: Escape periods in regular expressions where the
 character is intended to match only a literal period.

Props westonruter, mukesh27, johnbillion

Fixes #63988
Built from https://develop.svn.wordpress.org/trunk@60783


git-svn-id: http://core.svn.wordpress.org/trunk@60119 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/admin-bar.php | 4 ++--
 wp-includes/embed.php     | 2 +-
 wp-includes/version.php   | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/wp-includes/admin-bar.php b/wp-includes/admin-bar.php
index 5fe00e9801..c129964da4 100644
--- a/wp-includes/admin-bar.php
+++ b/wp-includes/admin-bar.php
@@ -377,7 +377,7 @@ function wp_admin_bar_site_menu( $wp_admin_bar ) {
 	$blogname = get_bloginfo( 'name' );
 
 	if ( ! $blogname ) {
-		$blogname = preg_replace( '#^(https?://)?(www.)?#', '', get_home_url() );
+		$blogname = preg_replace( '#^(https?://)?(www\.)?#', '', get_home_url() );
 	}
 
 	if ( is_network_admin() ) {
@@ -698,7 +698,7 @@ function wp_admin_bar_my_sites_menu( $wp_admin_bar ) {
 		$blogname = $blog->blogname;
 
 		if ( ! $blogname ) {
-			$blogname = preg_replace( '#^(https?://)?(www.)?#', '', get_home_url() );
+			$blogname = preg_replace( '#^(https?://)?(www\.)?#', '', get_home_url() );
 		}
 
 		$menu_id = 'blog-' . $blog->userblog_id;
diff --git a/wp-includes/embed.php b/wp-includes/embed.php
index 6ef190d0ea..937dd6fb27 100644
--- a/wp-includes/embed.php
+++ b/wp-includes/embed.php
@@ -202,7 +202,7 @@ function wp_maybe_load_embeds() {
 		return;
 	}
 
-	wp_embed_register_handler( 'youtube_embed_url', '#https?://(www.)?youtube\.com/(?:v|embed)/([^/]+)#i', 'wp_embed_handler_youtube' );
+	wp_embed_register_handler( 'youtube_embed_url', '#https?://(www\.)?youtube\.com/(?:v|embed)/([^/]+)#i', 'wp_embed_handler_youtube' );
 
 	/**
 	 * Filters the audio embed handler callback.
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 1fab4e75fe..1b259d61c0 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.9-alpha-60782';
+$wp_version = '6.9-alpha-60783';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.