CVE-2023-28477

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

0.58% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 45.6% 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

2023-04-28 00:00Z3 YR AGO

Last updated

2024-08-02 12:38Z2 YR AGO

Reserved

2023-03-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

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

Data version

5.1

Document digest

6b936871899d51bac41d30d3b7bbbeda051d3f1dc5265e338c6eb942c7d405b6

• concretecms.comhttps://concretecms.com
• www.concretecms.orghttps://www.concretecms.org/about/project-news/security/concrete-cms-security-advisory-2023-04-20
• www.concretecms.orghttps://www.concretecms.org/about/project-news/security/2023-11-09-security-blog-about-updated-cves-and-new-release