CVE-2021-33511

HIGH

Plone < 5.2.4 - Server-Side Request Forgery via lxml Parser

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/05/22/1

Scores

CVSS v3 7.5
EPSS 0.0120
EPSS Percentile 64.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-918
Status published
Products (2)
plone/plone < 5.2.4
pypi/Plone 0PyPI
Published May 21, 2021
Tracked Since Feb 18, 2026