XML External Entity Vulnerability in Plone by Plone Foundation
CVE-2020-28734

8.8HIGH

Key Information:

Vendor

Plone

Status
Plone
Vendor
CVE Published:
30 December 2020

What is CVE-2020-28734?

An XML External Entity (XXE) vulnerability exists in Plone versions before 5.2.3, permitting attackers to exploit features intended only for users with Manager role access. This flaw can lead to unauthorized exposure of sensitive files or enable other attacks, emphasizing the need for timely updates and security considerations.

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

.