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validate postId in the site-editor.php #7188

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validate postId in the site-editor.php #7188

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4683dbe
validate postId in the site-editor.php
mi5t4n Aug 13, 2024
038bead
Merge branch 'WordPress:trunk' into fix/61796
mi5t4n Aug 23, 2024
84c3c8a
Ensure the post type is not wp_block
mi5t4n Aug 23, 2024
bb0bb39
Ensure the post type is not page.
mi5t4n Aug 23, 2024
8fd4278
Add a check to ensure `postType` exists before proceeding with the re…
mi5t4n Aug 23, 2024
a7b6460
Introduced $post_type_param variable with sanitize value of $_GET["po…
mi5t4n Aug 23, 2024
32b11c0
Bail early if postId and postType are not valid, so that the unnecess…
mi5t4n Aug 23, 2024
a0b8164
removed the new line.
mi5t4n Aug 23, 2024
fbcd239
Reuse and avoid a PHP error if the value is not set
hellofromtonya Oct 4, 2024
ff15ab1
Added a link to the site editor in wp_die() when the page does not ex…
mi5t4n Nov 25, 2024
64e135c
Added a link to the patterns page in wp_die() when the pattern does n…
mi5t4n Nov 25, 2024
25ecd75
Added a link to the templates page in wp_die() when the template does…
mi5t4n Nov 25, 2024
39669ab
Added a link to the template parts page in wp_die() when the template…
mi5t4n Nov 25, 2024
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70 changes: 68 additions & 2 deletions src/wp-admin/site-editor.php
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Original file line number Diff line number Diff line change
Expand Up @@ -19,10 +19,11 @@
);
}

$is_template_part = isset( $_GET['postType'] ) && 'wp_template_part' === sanitize_key( $_GET['postType'] );
$post_type_param = isset( $_GET['postType'] ) ? sanitize_key( wp_unslash( $_GET['postType'] ) ) : '';
$is_template_part = $post_type_param && 'wp_template_part' === $post_type_param;
$is_template_part_path = isset( $_GET['path'] ) && 'wp_template_partall' === sanitize_key( $_GET['path'] );
$is_template_part_editor = $is_template_part || $is_template_part_path;
$is_patterns = isset( $_GET['postType'] ) && 'wp_block' === sanitize_key( $_GET['postType'] );
$is_patterns = $post_type_param && 'wp_block' === $post_type_param;
$is_patterns_path = isset( $_GET['path'] ) && 'patterns' === sanitize_key( $_GET['path'] );
$is_patterns_editor = $is_patterns || $is_patterns_path;

Expand All @@ -34,6 +35,71 @@
}
}

// Validate postId and postType.
if ( isset( $_GET['postId'] ) && $post_type_param ) {
switch ( $post_type_param ) {
case 'page':
$post = get_post( (int) $_GET['postId'] );

if ( null === $post || 'page' !== get_post_type( $post ) ) {
wp_die(
__( 'Invalid page ID.' ),
'',
array(
'link_url' => admin_url( 'site-editor.php' ),
'link_text' => __( 'Return to site editor' ),
)
);
}
break;

case 'wp_block':
$post = get_post( (int) $_GET['postId'] );

if ( null === $post || 'wp_block' !== get_post_type( $post ) ) {
wp_die(
__( 'Invalid pattern ID.' ),
'',
array(
'link_url' => add_query_arg( array( 'postType' => 'wp_block' ), admin_url( 'site-editor.php' ) ),
'link_text' => __( 'Return to patterns page' ),
)
);
}
break;

case 'wp_template':
$block_template = get_block_template( $_GET['postId'] );
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Noting that $_GET['postId'] isn't sanitized here or in the next case.

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This has been fixed


if ( null === $block_template ) {
wp_die(
__( 'Invalid template ID.' ),
'',
array(
'link_url' => add_query_arg( array( 'postType' => 'wp_template' ), admin_url( 'site-editor.php' ) ),
'link_text' => __( 'Return to templates page' ),
)
);
}
break;

case 'wp_template_part':
$block_template = get_block_template( $_GET['postId'], 'wp_template_part' );

if ( null === $block_template ) {
wp_die(
__( 'Invalid template part ID.' ),
'',
array(
'link_url' => add_query_arg( array( 'postType' => 'wp_template_part' ), admin_url( 'site-editor.php' ) ),
'link_text' => __( 'Return to template parts page' ),
)
);
}
break;
}
}

// Used in the HTML title tag.
$title = _x( 'Editor', 'site editor title tag' );
$parent_file = 'themes.php';
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