CVE-2023-43856Network attack vector

Arbitrary file read via template controller

Published Sep 26, 2023 · Updated Jul 9, 2026

Arbitrary file read in Dreamer CMS 4.1.3 allows remote attackers to read server files through the administrative template controller. The public record identifies /admin/TemplateController.java as the affected component but does not disclose the request parameter or file-resolution operation that accepts an attacker-controlled path. No authentication or user interaction is required, and successful exploitation exposes file contents without reported modification or service interruption.

CVSS severity7.5
High
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file read in Dreamer CMS 4.1.3 allows remote attackers to read server files through the administrative template controller. The public record identifies /admin/TemplateController.java as the affected component but does not disclose the request parameter or file-resolution operation that accepts an attacker-controlled path. No authentication or user interaction is required, and successful exploitation exposes file contents without reported modification or service interruption.

The record

CVE
CVE-2023-43856
Published
Sep 26, 2023
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-552, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-552Files or Directories Accessible to External Parties
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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