PYSEC-2026-2882

vendorUSosv

Improper Restriction of XML External Entity Reference in Plone

view advisory published 2026-07-09Licence: CC-BY-4.0

Plone before 5.2.3 allows XXE attacks via a feature that is protected by an unapplied permission of plone.schemaeditor.ManageSchemata (therefore, only available to the Manager role).

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2020-28736UShigh8.8—
Plone before 5.2.3 allows XXE attacks via a feature that is protected by an unapplied permission of plone.schemaeditor.ManageSchemata (therefore, only available to the Manager role…
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references

External citations — patches, advisories, analysis.

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