CVE-2020-28734

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 71.2% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-12-30 18:35Z5 YR AGO

Last updated

2024-08-04 16:40Z2 YR AGO

Reserved

2020-11-16

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-611Improper Restriction of XML External Entity ReferenceBase

Data version

5.1

Document digest

b22617a0d5e7bfc9073302d7d92a12dde74e1b89d5c09c487fdfafb1d3827841

• www.misakikata.comhttps://www.misakikata.com/codes/plone/python-en.htmlx_refsource_MISC
• github.comhttps://github.com/plone/Products.CMFPlone/issues/3209x_refsource_MISC
• dist.plone.orghttps://dist.plone.org/release/5.2.3/RELEASE-NOTES.txtx_refsource_CONFIRM