CVE-2025-2917

MediumPublic PoC

Published: 28 March 2025

Published

28 March 2025

Modified

09 June 2025

KEV Added

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Patch

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CVSS Score 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Score 0.0040 60.7th percentile

Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-2917 is a medium-severity Path Traversal (CWE-22) vulnerability in 1000Mz Chestnutcms. Its CVSS base score is 4.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 39.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and SI-10 (Information Input Validation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match

prevent

Directly remediates the path traversal flaw in the ChestnutCMS readFile function by identifying, reporting, and correcting the vulnerability.

SI-10 Information Input Validation good match

prevent

Requires validation of the filePath argument at the /dev-api/cms/file/read endpoint to block path traversal sequences like '../'.

AC-3 Access Enforcement good match

prevent

Enforces access control policies to restrict file reads to authorized paths only, preventing unauthorized disclosure via traversal.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1005 Data from Local System Collection

Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.

attack.mitre.org →

Why these techniques?

The vulnerability is a remote path traversal in a public-facing web application (enables T1190 Exploit Public-Facing Application) that directly allows arbitrary file reads from the local system (enables T1005 Data from Local System).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD Description

A vulnerability, which was classified as problematic, was found in ChestnutCMS up to 1.5.3. Affected is the function readFile of the file /dev-api/cms/file/read. The manipulation of the argument filePath leads to path traversal. It is possible to launch the attack…

remotely. The exploit has been disclosed to the public and may be used.

Deeper analysisAI

CVE-2025-2917 is a path traversal vulnerability classified under CWE-22, affecting ChestnutCMS versions up to 1.5.3. The issue resides in the readFile function within the /dev-api/cms/file/read endpoint, where manipulation of the filePath argument enables directory traversal. Published on 2025-03-28, it carries a CVSS v3.1 base score of 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N), rated as problematic.

An attacker with low privileges can exploit this vulnerability remotely over the network with low complexity and no user interaction required. Successful exploitation allows arbitrary file reads on the server, resulting in limited disclosure of sensitive information due to the low confidentiality impact.

Advisories referenced in VulDB (ctiid.301890, id.301890, submit.520933) and a Notion page detailing the arbitrary file read vulnerability provide further technical analysis and exploit information. No specific patch or mitigation details are outlined in the core CVE description.

The exploit has been publicly disclosed and may be used by attackers.