CVE-2021-29044

Liferay Portal and Liferay DXP Vulnerable to Cross-Site Scripting (XSS) via Membership Request Admin Page

Cross-site scripting (XSS) vulnerability in the Site module's membership request administration pages in Liferay Portal 7.0.0 through 7.3.5, and Liferay DXP 7.0 before fix pack 97, 7.1 before fix pack 21, 7.2 before fix pack 10 and 7.3 before fix pack 1 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_site_my_sites_web_portlet_MySitesPortlet_comments parameter.

Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.

CVE-2021-29044 has a CVSS score of 6.1 (Medium). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (7.3.6, 7.0.10.fp97, 7.1.10.fp21, 7.2.10.fp10, 7.3.10.fp1); upgrading removes the vulnerable code path.

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1. What is CVE-2021-29044? CVE-2021-29044 is a medium-severity cross-site scripting (XSS) vulnerability in com.liferay.portal:release.portal.bom (maven), affecting versions >= 7.0.0, < 7.3.6. It is fixed in 7.3.6, 7.0.10.fp97, 7.1.10.fp21, 7.2.10.fp10, 7.3.10.fp1. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
2. How severe is CVE-2021-29044? CVE-2021-29044 has a CVSS score of 6.1 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which packages are affected by CVE-2021-29044?
   • com.liferay.portal:release.portal.bom (maven) (versions >= 7.0.0, < 7.3.6)
   • com.liferay.portal:release.dxp.bom (maven) (versions >= 7.0.10.fp0, < 7.0.10.fp97)
4. Is there a fix for CVE-2021-29044? Yes. CVE-2021-29044 is fixed in 7.3.6, 7.0.10.fp97, 7.1.10.fp21, 7.2.10.fp10, 7.3.10.fp1. Upgrade to this version or later.
5. Is CVE-2021-29044 exploitable, and should I be worried? Whether CVE-2021-29044 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2021-29044 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2021-29044?
   • Upgrade com.liferay.portal:release.portal.bom to 7.3.6 or later
   • Upgrade com.liferay.portal:release.dxp.bom to 7.0.10.fp97 or later
   • Upgrade com.liferay.portal:release.dxp.bom to 7.1.10.fp21 or later
   • Upgrade com.liferay.portal:release.dxp.bom to 7.2.10.fp10 or later
   • Upgrade com.liferay.portal:release.dxp.bom to 7.3.10.fp1 or later

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