XXE Attack Vulnerability in Plone by Plone Foundation
CVE-2020-28736

8.8HIGH

Key Information:

Vendor

Plone

Status
Plone
Vendor
CVE Published:
30 December 2020

What is CVE-2020-28736?

Earlier versions of Plone, specifically prior to 5.2.3, are susceptible to XML External Entity (XXE) attacks. This vulnerability arises from a feature restricted by an unapplied permission related to plone.schemaeditor.ManageSchemata, making it accessible solely to users with Manager role permissions. If exploited, attackers could potentially access sensitive information or affect the application’s behavior by manipulating XML input.

References

https://www.misakikata.com/codes/plone/python-en.html
x_refsource_MISC
https://github.com/plone/Products.CMFPlone/issues/3209
x_refsource_MISC
https://dist.plone.org/release/5.2.3/RELEASE-NOTES.txt
x_refsource_CONFIRM

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.