CVE-2020-8789

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

0.65% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 48.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2020-05-22 13:20Z6 YR AGO

Last updated

2024-08-04 10:12Z2 YR AGO

Reserved

2020-02-07

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

cdc057088cce7ed7cbc3bd9dea52a7de3931503471e04eddbe5f522f1dec1671

• packetstormsecurity.comhttp://packetstormsecurity.com/files/157787/Composr-CMS-10.0.30-Cross-Site-Scripting.htmlx_refsource_MISC
• seclists.org20200522 Composr CMS 10.0.30 - (Authenticated) Cross-Site Scriptinghttp://seclists.org/fulldisclosure/2020/May/39mailing-listx_refsource_FULLDISC