Changeset 60681 for trunk/src/wp-admin/edit-form-blocks.php

Timestamp:

08/27/2025 10:32:57 AM (8 months ago)

Author:

jonsurrell

Message:

Scripts: Use appropriate JSON encoding flags for script tags.

wp_json_encode() with default arguments is insufficient to safely escape JSON for script tags. Use JSON_HEX_TAG | JSON_UNESCAPED_SLASHES flags.

Developed in ​https://github.com/WordPress/wordpress-develop/pull/9557.

Props devasheeshkaul, jonsurrell, siliconforks.
Fixes #63851.

File:

• trunk/src/wp-admin/edit-form-blocks.php (modified) (5 diffs)

trunk/src/wp-admin/edit-form-blocks.php

@@ -116 +116 @@
 wp_add_inline_script(
     'wp-blocks',
-    sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( $post ) ) ),
+    sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( $post ), JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) ),
     'after'
 );
@@ -145 +145 @@
 wp_add_inline_script(
     'wp-blocks',
-    'wp.blocks.unstable__bootstrapServerSideBlockDefinitions(' . wp_json_encode( get_block_editor_server_block_settings() ) . ');'
+    'wp.blocks.unstable__bootstrapServerSideBlockDefinitions(' . wp_json_encode( get_block_editor_server_block_settings(), JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) . ');'
 );
 
@@ -159 +159 @@
         );
     }
-    $script = sprintf( 'for ( const source of %s ) { wp.blocks.registerBlockBindingsSource( source ); }', wp_json_encode( $filtered_sources ) );
+    $script = sprintf( 'for ( const source of %s ) { wp.blocks.registerBlockBindingsSource( source ); }', wp_json_encode( $filtered_sources, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) );
     wp_add_inline_script(
         'wp-blocks',
@@ -179 +179 @@
 wp_add_inline_script(
     'wp-editor',
-    sprintf( 'var _wpMetaBoxUrl = %s;', wp_json_encode( $meta_box_url ) ),
+    sprintf( 'var _wpMetaBoxUrl = %s;', wp_json_encode( $meta_box_url, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) ),
     'before'
 );
@@ -365 +365 @@
     $post->post_type,
     $post->ID,
-    wp_json_encode( $editor_settings ),
-    wp_json_encode( $initial_edits )
+    wp_json_encode( $editor_settings, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ),
+    wp_json_encode( $initial_edits, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES )
 );
 wp_add_inline_script( 'wp-edit-post', $script );