Lightbox with PhotoSwipe

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$bg_opacity'.

PHP file should prevent direct access. Add a check like: if ( ! defined( 'ABSPATH' ) ) exit;

Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: "$bg_opacity".

Use of a direct database call is discouraged.

Direct database call without caching detected. Consider using wp_cache_get() / wp_cache_set() or wp_cache_delete().

Unescaped parameter $sql used in $wpdb->query()\n$sql assigned unsafely at line 1038.

Use placeholders and $wpdb->prepare(); found $sql

Classes declared by a theme/plugin should start with the theme/plugin prefix. Found: "ExifHelper".

File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: rmdir().

Multiple placeholders in translatable strings should be ordered. Expected "%1$d, %2$d", but got "%d, %d" in 'The smallest size (%d×%d pixels) will be used to check if a smaller image is available for the transition.'.

Function "str_ends_with()" requires WordPress 5.9.0, but your plugin minimum supported version is WordPress 5.3.0.

No PHP code was found in this file and short open tags are not allowed by this install of PHP. This file may be using short open tags but PHP does not allow them.

load_plugin_textdomain() has been discouraged since WordPress version 4.6. When your plugin is hosted on WordPress.org, you no longer need to manually include this function call for translations under your plugin slug. WordPress will automatically load the translations for you as needed.

Sanitization missing for register_setting().

Detected usage of a non-sanitized input variable: $_POST['lbwps_nonce']

$_POST['lbwps_nonce'] not unslashed before sanitization. Use wp_unslash() or similar

File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: is_writable().

parse_url() is discouraged because of inconsistency in the output across PHP versions; use wp_parse_url() instead.

unlink() is discouraged. Use wp_delete_file() to delete a file.

Scripts must be registered/enqueued via wp_enqueue_script()

A function call to __() with texts containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

Missing "License" in Plugin Header. Please update your Plugin Header with a valid GPLv2 (or later) compatible license.