How severe is CVE-2023-43856?

CVE-2023-43856 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-43856 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43856?

CVE-2023-43856 affects Iteachyou Dreamer Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43856?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-43856 published?

CVE-2023-43856 was published on 2023-09-27 and last updated on 2026-07-05.

CVE-2023-43856

CVE-2023-43856 is a high-severity vulnerability in Iteachyou Dreamer Cms with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-552.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-552
Affected product: Iteachyou Dreamer Cms
Published: 2023-09-27
Last modified: 2026-07-05

Description

Dreamer CMS v4.1.3 was discovered to contain an arbitrary file read vulnerability via the component /admin/TemplateController.java.

Frequently asked questions

What is CVE-2023-43856?: Dreamer CMS v4.1.3 was discovered to contain an arbitrary file read vulnerability via the component /admin/TemplateController.java.
How severe is CVE-2023-43856?: CVE-2023-43856 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-43856 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43856?: CVE-2023-43856 affects Iteachyou Dreamer Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43856?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-43856 published?: CVE-2023-43856 was published on 2023-09-27 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:a:iteachyou:dreamer_cms:4.1.3:*:*:*:*:*:*:*

More vulnerabilities in Iteachyou Dreamer Cms

CVE-2023-42279 — Critical (CVSS 9.8): Dreamer CMS v4.1.3 was discovered to contain a SQL injection vulnerability via the model-form-management-field form.
CVE-2021-43084 — Critical (CVSS 9.8): An SQL Injection vulnerability exists in Dreamer CMS 4.0.0 via the tableName parameter.
CVE-2023-46886 — Critical (CVSS 9.1): Dreamer CMS before version 4.0.1 is vulnerable to Directory Traversal. Background template management allows arbitrary…
CVE-2023-50017 — High (CVSS 8.8): Dreamer CMS v4.1.3 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component…
CVE-2023-48914 — High (CVSS 8.8): Dreamer CMS v4.1.3 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component /admin/archives/add.
CVE-2023-48913 — High (CVSS 8.8): Dreamer CMS v4.1.3 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component…

All CVEs affecting Iteachyou Dreamer Cms →

Other CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities

CVE-2025-41240 — Critical (CVSS 10.0): Three Bitnami Helm charts mount Kubernetes Secrets under a predictable path (/opt/bitnami/*/secrets) that is located…
CVE-2024-56731 — Critical (CVSS 10.0): Gogs is an open source self-hosted Git service. Prior to version 0.13.3, it's still possible to delete files under the…
CVE-2024-6209 — Critical (CVSS 10.0): Unauthorized file access in WEB Server in ABB ASPECT - Enterprise v3.08.01; NEXUS Series v3.08.01 ; MATRIX Series…
CVE-2025-14771 — Critical (CVSS 9.9): Files or directories accessible to external parties vulnerability in ABB T-MAC Plus. This issue affects T-MAC Plus:…
CVE-2024-39931 — Critical (CVSS 9.9): Gogs through 0.13.0 allows deletion of internal files.
CVE-2021-43821 — Critical (CVSS 9.9): Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast before version 9.10 or 10.6…

Browse all CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities →