CVE-2019-6588: Liferay Portal

Medium severity, CVSS 4.7. EPSS: 2.3% chance of exploitation in the next 30 days.

In Liferay Portal before 7.1 CE GA4, an XSS vulnerability exists in the SimpleCaptcha API when custom code passes unsanitized input into the "url" parameter of the JSP taglib call <liferay-ui:captcha url="<%= url %>" /> or <liferay-captcha:captcha url="<%= url %>" />. Liferay Portal out-of-the-box behavior with no customizations is not vulnerable.

Affected products

• Liferay Liferay Portal: up to and including 6.0.6; version 6.1.0 only; version 6.1.1 only; version 6.1.2 only; version 6.2.0 only; version 6.2.1 only; …

Published 2019-06-03. Last modified 2026-06-17.