CVE-2020-28734
Improper Restriction of XML External Entity Reference in Plone
8.8
HIGH
CVSS 3.1
EPSS 0.48%
Description
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
How to fix CVE-2020-28734
To remediate CVE-2020-28734, upgrade the affected package to a fixed version below.
- PyPI/plone—upgrade to 5.2.3 or later
- PyPI/plone—upgrade to 5.2.3 or later
- —upgrade to 2.6.8 or later
- —upgrade to 3.2.10 or later
- —upgrade to 4.1.6 or later
- —upgrade to 1.6.3 or later
Is CVE-2020-28734 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 5.2.3
- from 0, < 5.2.3
- from 0, < 2.6.8
- from 0, < 3.2.10
- from 0, < 4.1.6
- from 0, < 1.6.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |