W3 Total Cache before 0.9.2.5 allows remote attackers to retrieve password hash information due to insecure storage of database cache files.

W3 Total Cache before 0.9.2.5 generates hash keys insecurely which allows remote attackers to predict the values of the hashes.

W3 Total Cache before 0.9.2.5 exposes sensitive cached database information which allows remote attackers to download this information via their hash keys.

WordPress W3 Total Cache Plugin 0.9.2.8 has a Remote PHP Code Execution Vulnerability

Cross-site scripting (XSS) vulnerability in the W3 Total Cache plugin before 0.9.4.1 for WordPress, when debug mode is enabled, allows remote attackers to inject arbitrary web script or HTML via the "Cache key" in the HTML-Comments, as demonstrated by the PATH_INFO to the default URI.

The W3 Total Cache plugin before 0.9.4.1 for WordPress does not properly handle empty nonces, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks and hijack the authentication of administrators for requests that change the mobile site redirect URI via the mobile_groups[*][redirect] parameter and an empty _wpnonce parameter in the w3tc_mobile page to wp-admin/admin.php.

pub/sns.php in the W3 Total Cache plugin before 0.9.4 for WordPress allows remote attackers to read arbitrary files via the SubscribeURL field in SubscriptionConfirmation JSON data.

The Total Upkeep – WordPress Backup Plugin plus Restore & Migrate by BoldGrid plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.14.9 via the env-info.php and restore-info.json files. This makes it possible for unauthenticated attackers to find the location of back-up files and subsequently download them.

The W3 Total Cache WordPress plugin before 2.1.3 did not sanitise or escape some of its CDN settings, allowing high privilege users to use JavaScript in them, which will be output in the page, leading to an authenticated Stored Cross-Site Scripting issue

The W3 Total Cache WordPress plugin before 2.1.4 was vulnerable to a reflected Cross-Site Scripting (XSS) security vulnerability within the "extension" parameter in the Extensions dashboard, which is output in an attribute without being escaped first. This could allow an attacker, who can convince an authenticated admin into clicking a link, to run malicious JavaScript within the user's web browser, which could lead to full site compromise.

The W3 Total Cache WordPress plugin before 2.1.5 was affected by a reflected Cross-Site Scripting (XSS) issue within the "extension" parameter in the Extensions dashboard, when the 'Anonymously track usage to improve product quality' setting is enabled, as the parameter is output in a JavaScript context without proper escaping. This could allow an attacker, who can convince an authenticated admin into clicking a link, to run malicious JavaScript within the user's web browser, which could lead to full site compromise.

The Total Upkeep plugin for WordPress is vulnerable to information disclosure in versions up to, and including 1.14.13. This is due to missing authorization on the heartbeat_received() function that triggers on WordPress heartbeat. This makes it possible for authenticated attackers, with subscriber-level permissions and above to retrieve back-up paths that can subsequently be used to download the back-up.

Cross-Site Request Forgery (CSRF) vulnerability in BoldGrid Post and Page Builder by BoldGrid – Visual Drag and Drop Editor plugin <= 1.24.1 versions.

The W3 Total Cache plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 2.7.5 via Google OAuth API secrets stored in plaintext in the publicly visible plugin source. This can allow unauthenticated attackers to impersonate W3 Total Cache and gain access to user account information in successful conditions. This would not impact the WordPress users site in any way.

The W3 Total Cache plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on several functions in all versions up to, and including, 2.8.1. This makes it possible for unauthenticated attackers to deactivate the plugin as well as activate and deactivate plugin extensions.

The W3 Total Cache plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 2.8.1 through the publicly exposed debug log file. This makes it possible for unauthenticated attackers to view potentially sensitive information in the exposed log file. For example, the log file may contain nonce values that can be used in further CSRF attacks. Note: the debug feature must be enabled for this to be a concern, and it is disabled by default.

The W3 Total Cache plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the is_w3tc_admin_page function in all versions up to, and including, 2.8.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to obtain the plugin's nonce value and perform unauthorized actions, resulting in information disclosure, service plan limits consumption as well as making web requests to arbitrary locations originating from the web application that can be used to query information from internal services, including instance metadata on cloud-based applications.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in BoldGrid Total Upkeep allows Relative Path Traversal.This issue affects Total Upkeep: from n/a through 1.15.8.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in BoldGrid Post and Page Builder by BoldGrid – Visual Drag and Drop Editor allows Stored XSS.This issue affects Post and Page Builder by BoldGrid – Visual Drag and Drop Editor: from n/a through 1.26.2.

The BoldGrid Easy SEO – Simple and Effective SEO plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 1.6.14 via meta information (og:description) This makes it possible for unauthenticated attackers to view the first 130 characters of a password protected post which can contain sensitive information.

The Post and Page Builder by BoldGrid – Visual Drag and Drop Editor plguin for WordPress is vulnerable to Stored Cross-Site Scripting via an unknown parameter in versions up to, and including, 1.26.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Total Upkeep – WordPress Backup Plugin plus Restore & Migrate by BoldGrid plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.16.6 via the cron_interval parameter. This is due to missing input validation and sanitization. This makes it possible for authenticated attackers, with Administrator-level access and above, to execute code on the server.

The Total Upkeep – WordPress Backup Plugin plus Restore & Migrate by BoldGrid plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.16.10 via the compression_level setting. This is due to the plugin using the compression_level setting in proc_open() without any validation. This makes it possible for authenticated attackers, with administrator-level access and above, to execute code on the server.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in BoldGrid Post and Page Builder by BoldGrid post-and-page-builder allows Stored XSS.This issue affects Post and Page Builder by BoldGrid: from n/a through <= 1.27.5.