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 v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0061 70.2th 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 29.8% 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 CM-7 (Least Functionality) and SI-10 (Information Input Validation).

Deeper analysis

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.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-206857

Vulnerability details

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

CWE(s): CWE-94

Related Threats

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