Description
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.
Remediation
References
Related Vulnerabilities
WordPress Plugin Simple Ads Manager SQL Injection (2.9.4.116)
WordPress Plugin Portfolio Gallery-Photo Gallery Cross-Site Scripting (2.2.2)
WordPress Plugin WordPress Form Customizer-CF7 Customizer Cross-Site Scripting (1.6.1)
WordPress 4.4.x Cross-Site Scripting Vulnerability (4.4 - 4.4.2)
Django URL Redirection to Untrusted Site ('Open Redirect') Vulnerability (CVE-2017-7234)