emrevona vulnerabilities and threats

The WP Fastest Cache plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.5.3. The plugin caches the response of Core’s wp-activate.php without honoring its no-store/no-cache headers, the wp-activate-* cookie, or the WP_INSTALLING state, writing the credential-bearing activation response to a publicly accessible cache file. This makes it possible for unauthenticated attackers to retrieve the plaintext username and twelve-character password of the most recently activated Multisite registrant from that cached wp-activate.php response. Exploitation requires a Multisite subdirectory installation with public user and site registration enabled, and the credentials are only exposed after a genuine registrant follows their activation link.

WP Fastest Cache – WordPress Cache Plugin versions up to and including 1.5.0 are vulnerable to stored cross-site scripting (XSS) via the HTTP Host Header. This vulnerability arises when the Polylang or Polylang Pro plugin is active and the Combine JS option is enabled, allowing unauthenticated attackers to inject malicious scripts that execute in the context of users visiting the affected pages.

The WP Fastest Cache Premium plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.7.4 via the 'get_server_time_ajax_request' AJAX action. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services. The free version is not affected.

The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the wpfc_db_fix_callback() function in all versions up to, and including, 1.4.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to initiate several database fix actions. This only affects sites with premium activated.

The WP Fastest Cache plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.2.6 via the specificDeleteCache function. This makes it possible for authenticated attackers to delete arbitrary files on the server, which can include wp-config.php files of the affected site or other sites in a shared hosting environment.