Cross-site scripting (XSS) vulnerability in the Login form in Piwik 0.1.6 through 0.5.5 allows remote attackers to inject arbitrary web script or HTML via the form_url parameter.

Directory traversal vulnerability in Piwik 0.6 through 0.6.3 allows remote attackers to include arbitrary local files and possibly have unspecified other impact via directory traversal sequences in a crafted data-renderer request.

Multiple cross-site scripting (XSS) vulnerabilities in Piwik before 1.1 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

The Piwik_Common::getIP function in Piwik before 1.1 does not properly determine the client IP address, which allows remote attackers to bypass intended geolocation and logging functionality via (1) use of a private (aka RFC 1918) address behind a proxy server or (2) spoofing of the X-Forwarded-For HTTP header.

Piwik before 1.1 does not prevent the rendering of the login form inside a frame in a third-party HTML document, which makes it easier for remote attackers to conduct clickjacking attacks via a crafted web site.

Cookie.php in Piwik before 1.1 does not set the secure flag for the session cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session.

Piwik before 1.1 does not properly limit the number of files stored under tmp/sessions/, which might allow remote attackers to cause a denial of service (inode consumption) by establishing many sessions.

Piwik 1.1 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by plugins/Widgetize/Widgetize.php and certain other files.

Cross-site Scripting (XSS) in Piwik before 1.10.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. NOTE: This is a different vulnerability than CVE-2013-0194 and CVE-2013-0195.

Cross-site Scripting (XSS) in Piwik before 1.10.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. NOTE: This is a different vulnerability than CVE-2013-0193 and CVE-2013-0195.

Cross-site Scripting (XSS) in Piwik before 1.10.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. NOTE: This is a different vulnerability than CVE-2013-0193 and CVE-2013-0194.

Cross-site scripting (XSS) vulnerability in Piwik before 1.11 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Piwik before 1.11 accepts input from a POST request instead of a GET request in unspecified circumstances, which might allow attackers to obtain sensitive information by leveraging the logging of parameters.

Directory traversal vulnerability in core/ViewDataTable/Factory.php in Piwik before 2.15.0 allows remote attackers to include and execute arbitrary local files via the viewDataTable parameter.

The DisplayTopKeywords function in plugins/Referrers/Controller.php in Piwik before 2.15.0 allows remote attackers to conduct PHP object injection attacks, conduct Server-Side Request Forgery (SSRF) attacks, and execute arbitrary PHP code via a crafted HTTP header.

A full path disclosure vulnerability was discovered in Matomo v3.9.1 where a user can trigger a particular error to discover the full path of Matomo on the disk, because lastError.file is used in plugins/CorePluginsAdmin/templates/safemode.twig. NOTE: the vendor disputes the significance of this issue, stating "avoid reporting path disclosures, as we don't consider them as security vulnerabilities.

The official piwik Docker images before fpm-alpine (Alpine specific) contain a blank password for a root user. Systems using the Piwik Docker container deployed by affected versions of the Docker image may allow an remote attacker to achieve root access.

The matomo_integration (aka Matomo Integration) extension before 1.3.2 for TYPO3 allows XSS.

The Matomo Analytics – Ethical Stats. Powerful Insights. plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the idsite parameter in all versions up to, and including, 4.15.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Piwik PRO allows Cross-Site Scripting (XSS).This issue affects Piwik PRO: from 0.0.0 before 1.3.2.