This security bulletin contains one low risk vulnerability.
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the "wp-piwik" shortcode. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.Mitigation
Install updates from vendor's website.Vulnerable software versions
WP-Matomo (WP-Piwik): 1.0.0 - 1.0.28Fixed software versions
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?