The Classified Listing – Classified ads & Business Directory Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.0.4 via the rtcl_taxonomy_settings_export function. This makes it possible for unauthenticated attackers to extract sensitive data including API keys and tokens.
The Classified Listing – Classified ads & Business Directory Plugin plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the rtcl_fb_gallery_image_delete AJAX action in all versions up to, and including, 3.0.10.3. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary attachements.
The Classified Listing – Classified ads & Business Directory Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.0.4. This is due to missing or incorrect nonce validation on the 'rtcl_update_user_account' function. This makes it possible for unauthenticated attackers to change the administrator user's password and email address via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. This locks the administrator out of the site and prevents them from resetting their password, while granting the attacker access to their account.
The Classified Listing – Classified ads & Business Directory Plugin plugin for WordPress is vulnerable to unauthorized access & modification of data due to a missing capability check on the rtcl_import_location() rtcl_import_category() functions in all versions up to, and including, 3.0.4. This makes it possible for authenticated attackers, with subscriber-level access and above, to create terms.