Product Addons for Woocommerce – Product Options with Custom Fields

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

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "active_plugins".

Processing form data without nonce verification.

Function "register_rest_route()" requires WordPress 4.4.0, but your plugin minimum supported version is WordPress 4.0.0.

The $text parameter must be a single text string literal. Found: $response

Detected usage of a non-sanitized input variable: $_GET[$field->name]

$_GET[$field->name] not unslashed before sanitization. Use wp_unslash() or similar

Processing form data without nonce verification.

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.

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

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().

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

Detected usage of meta_query, possible slow query.

Detected usage of a possibly undefined superglobal array index: $_GET['from_post']. Check that the array index exists before using it.

Mismatched text domain. Expected 'woo-custom-product-addons' but got 'my_text_domain'.

Unescaped parameter $query used in $wpdb->get_col()\n$query assigned unsafely at line 1181.

Missing $domain parameter in function call to __().

Detected usage of tax_query, possible slow query.

date() is affected by runtime timezone changes which can cause date/time to be incorrectly displayed. Use gmdate() instead.

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "self::$CPT.'_labels'".

All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.

wp_redirect() found. Using wp_safe_redirect(), along with the "allowed_redirect_hosts" filter if needed, can help avoid any chances of malicious redirects within code. It is also important to remember to call exit() after a redirect so that no other unwanted code is executed.

Multiple placeholders in translatable strings should be ordered. Expected "%1$d, %2$s", but got "%d, %s" in 'Value must be greater than or equal to %d for field %s '.

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