CVE-2023-28821

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.73% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 51.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2025-01-30 20:47Z1 YR AGO

Reserved

2023-03-24

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-640Weak Password Recovery Mechanism for Forgotten PasswordBase

Data version

5.1

Document digest

7df92497cfe157544e9dbb071036649ffbc6decd87754989c9da4b47d7e46894

• github.comhttps://github.com/concretecms/concretecms/releases
• www.concretecms.orghttps://www.concretecms.org/about/project-news/security/concrete-cms-security-advisory-2023-04-20