EPSS
Percentile
68.5%
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
dist.plone.org/release/5.2.3/RELEASE-NOTES.txt
github.com/plone/Products.CMFPlone/issues/3209
nvd.nist.gov/vuln/detail/CVE-2020-28734