# plone-app-event (PyPI) vulnerabilities

4 known vulnerabilities (1 critical), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Weekly downloads: 10.3K
- Dependents: 439
- Registry: https://pypi.org/project/plone-app-event/

## Advisories (4)

### [CVE-2026-55247](https://cve.now/CVE-2026-55247): plone.app.event: Denial of service via iCalendar import

- Severity: Critical 9.1
- Published: Aug 28, 2026
- Affected: fixed in 5.2.4; from 6.0.0a1, fixed in 6.0.1; fixed in 5.2.4; from 6.0.0a1, fixed in 6.0.1.

### [CVE-2020-28736](https://cve.now/CVE-2020-28736): Plone before 5.2.3 allows XXE attacks via a feature that is protected by an unapplied permission of plone.schemaeditor.ManageSchemata…

- Severity: Unrated
- Published: Dec 30, 2020
- Affected: fixed in 3.2.10.

### [CVE-2020-28735](https://cve.now/CVE-2020-28735): Plone before 5.2.3 allows SSRF attacks via the tracebacks feature (only available to the Manager role).

- Severity: Unrated
- Published: Dec 30, 2020
- Affected: fixed in 3.2.10.

### [CVE-2020-28734](https://cve.now/CVE-2020-28734): Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.

- Severity: Unrated
- Published: Dec 30, 2020
- Affected: fixed in 3.2.10.

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