CVE-2021-33508: Plone

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Plone through 5.2.4 allows XSS via a full name that is mishandled during rendering of the ownership tab of a content item.

Affected products

• Plone Plone: up to and including 5.2.4

Published 2021-05-21. Last modified 2026-06-17.