CVE-2019-6588 Liferay Portal Allows Cross-Site Scripting (XSS) via the SimpleCaptcha API

What is CVE-2019-6588?

CVE-2019-6588 is a medium-severity cross-site scripting vulnerability in Liferay Liferay Portal, published on 3 Jun 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-79

Which versions are affected by CVE-2019-6588?

2 open source packages ship an affected version, including com.liferay.portal:release.portal.bom. It affects 1 product.

Products include Liferay Liferay Portal.

How do I fix CVE-2019-6588?

Upgrade com.liferay.portal:release.portal.bom to 7.1.0 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2019-6588 being exploited?

There is no known exploitation of CVE-2019-6588 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Liferay Liferay Portal

• CVE-2020-7961 Liferay Portal Deserialization of Untrusted Data Exploited Critical 9.8
• CVE-2021-33990 File upload in n/a Critical 9.8
• CVE-2019-16891 Liferay Portal Allows RCE via Deserialization of a JSON Payload Critical 9.8
• CVE-2023-47797 Liferay Portal XSS with `p_l_back_url_title` on edit content page Critical 9.6
• CVE-2020-13445 Liferay Portal and Liferay DXP Vulnerable to Arbitrary Code Execution High 8.8

All Liferay Liferay Portal vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hwp2-gvm5-452f.