CVE-2025-70073

HighPublic PoCRCE

Published: 05 February 2026

Published

05 February 2026

Modified

12 February 2026

KEV Added

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Patch

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CVSS Score 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0047 64.7th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-70073 is a high-severity Code Injection (CWE-94) vulnerability in 1000Mz Chestnutcms. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 35.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-34 Non-modifiable Executable Programs

addresses: CWE-94

Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.

SC-44 Detonation Chambers

addresses: CWE-94

Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.

SI-10 Information Input Validation

addresses: CWE-94

Validates inputs used in dynamic code generation to block injected directives.

SI-16 Memory Protection

addresses: CWE-94

Directly prevents execution of attacker-supplied code written into data memory regions.

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 →

T1505.003 Web Shell Persistence

Adversaries may backdoor web servers with web shells to establish persistent access to systems.

attack.mitre.org →

Why these techniques?

Code injection in web app template function enables remote code execution on public-facing CMS (T1190) and direct deployment of persistent web shell (T1505.003).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

An issue in ChestnutCMS v.1.5.8 and before allows a remote attacker to execute arbitrary code via the template creation function

Deeper analysisAI

CVE-2025-70073 is a code injection vulnerability (CWE-94) in ChestnutCMS versions 1.5.8 and earlier. The flaw exists in the template creation function, enabling a remote attacker to execute arbitrary code. Published on 2026-02-05, it carries a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its network accessibility and potential for significant impact.

Exploitation requires high privileges, such as administrative access, allowing a remote attacker to target the system with low complexity and no user interaction. Upon success, the attacker can execute arbitrary code, achieving high confidentiality, integrity, and availability impacts, potentially leading to full server compromise.

Mitigation details are available in the referenced GitHub issue at https://github.com/liweiyi/ChestnutCMS/issues/8.