From 73b24b0ff0e7053211e901bd2166739ffc79e88f Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@git.wordpress.org>
Date: Mon, 24 Nov 2025 19:10:28 +0000
Subject: [PATCH] Media: Account for boolean false being returned by
 `wp_getimagesize()` when dealing with potentially invalid images in
 `wp_read_image_metadata()`.

Prior to PHP 8.5 a boolean value was silently ignored when being passed to `list()`, but in PHP 8.5 and higher this now triggers a PHP warning. This change adds an appropriate guard condition.

Props swissspidy, adamsilverstein

Fixes #64295

Built from https://develop.svn.wordpress.org/trunk@61291


git-svn-id: http://core.svn.wordpress.org/trunk@60603 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-admin/includes/image.php | 8 +++++++-
 wp-includes/version.php     | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/wp-admin/includes/image.php b/wp-admin/includes/image.php
index 1b5f2b1126..2553f68434 100644
--- a/wp-admin/includes/image.php
+++ b/wp-admin/includes/image.php
@@ -827,7 +827,13 @@ function wp_read_image_metadata( $file ) {
 		return false;
 	}
 
-	list( , , $image_type ) = wp_getimagesize( $file );
+	$image_size = wp_getimagesize( $file );
+
+	if ( false === $image_size ) {
+		return false;
+	}
+
+	list( , , $image_type ) = $image_size;
 
 	/*
 	 * EXIF contains a bunch of data we'll probably never need formatted in ways
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e430a91cce..10281f47a1 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '7.0-alpha-61290';
+$wp_version = '7.0-alpha-61291';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.