CVE-2021-33511
Server-Side Request Forgery in Plone
7.5
HIGH
CVSS 3.1
EPSS 0.28%
Description
Plone though 5.2.4 allows SSRF via the lxml parser. This affects Diazo themes, Dexterity TTW schemas, and modeleditors in plone.app.theming, plone.app.dexterity, and plone.supermodel.
How to fix CVE-2021-33511
To remediate CVE-2021-33511, upgrade the affected package to a fixed version below.
- PyPI/plone—no fix listed
- —upgrade to 5.2.5 or later
Is CVE-2021-33511 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, <= 5.2.4
- from 0, < 5.2.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |