CVE-2017-6396: Webpagetest Project Webpagetest

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

An issue was discovered in WPO-Foundation WebPageTest 3.0. The vulnerability exists due to insufficient filtration of user-supplied data passed to the "webpagetest-master/www/compare-cf.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

Affected products

• Webpagetest Project Webpagetest: version 3.0 only

Published 2017-03-02. Last modified 2026-06-17.