Viktor Szépe

I’ve updated my implementation long time ago:

add_action( 'admin_init', array( $this, 'hook_all_action' ) );

Conditionally:

        if ( ! empty( $_REQUEST['action'] ) ) {
            add_action( 'all', array( $this, 'unknown_action' ), 0 );
        }

Then unknown_action is:

    public function unknown_action( $tag ) {
        // Check tag first to speed things up
        if ( 'wp_ajax_' === substr( $tag, 0, 8 )
            || 'admin_post_' === substr( $tag, 0, 11 )
        ) {
            global $wp_actions;
            global $wp_filter;
            $whitelisted_actions = array(
                'wp_ajax_nopriv_wp-remove-post-lock',
                'wp_ajax_nopriv_SimpleHistoryNewRowsNotifier',
            );
            // Actions only, not filters, not registered ones, except whitelisted ones
            // Actions are basically filters
            if ( is_array( $wp_actions )
                && array_key_exists( $tag, $wp_actions )
                && is_array( $wp_filter )
                && ! array_key_exists( $tag, $wp_filter )
                && ! in_array( $tag, $whitelisted_actions )
            ) {
                $this->trigger_instant( 'wpf2b_admin_action_unknown', $tag );
            }
        }
    }

Thank you.

I am not yet able to confirm it.

Please use backticks, or the “code” button in the editor toolbar.
Thanks.

I am asking this because several websites have this cron output:

<div id="sucuriscan-alert-109" class="error sucuriscan-alert sucuriscan-alert-error">
    <a href="javascript:void(0)" class="close" onclick="sucuriscan_alert_close('109')">&times;</a>
    <p><b>Sucuri:</b> The file hashes could not be stored.</p>
</div>

Does it mean there is an API communication issue?