CVE-2025-68555

Critical

Published: 05 March 2026

Published

05 March 2026

Modified

22 April 2026

KEV Added

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Patch

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CVSS Score v3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Score 0.0043 34.6th percentile

Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2025-68555 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability. Its CVSS base score is 9.9 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 34.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-68555 is an Unrestricted Upload of File with Dangerous Type vulnerability (CWE-434) in the Nutrie WordPress theme developed by zozothemes. The flaw allows attackers to upload a web shell to the web server. It affects all versions of the Nutrie theme from n/a through versions prior to 2.0.1. The vulnerability has a CVSS v3.1 base score of 9.9, indicating critical severity due to its network accessibility, low complexity, low privileges required, lack of user interaction, scope change, and high impacts on confidentiality, integrity, and availability.

An attacker with low privileges, such as an authenticated WordPress user, can exploit this vulnerability remotely with low complexity and no user interaction. By uploading a malicious file like a web shell, the attacker gains the ability to execute arbitrary code on the server, potentially achieving full remote code execution, data exfiltration, modification of site content, or complete server compromise.

Patchstack advisories detail the vulnerability in the Nutrie theme and recommend updating to version 2.0.1 or later, where the arbitrary file upload issue is fixed. Security practitioners should verify theme versions on affected WordPress sites and apply the patch immediately, while also reviewing access controls for theme-related upload functionalities.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-208303

Vulnerability details

Unrestricted Upload of File with Dangerous Type vulnerability in zozothemes Nutrie nutrie allows Upload a Web Shell to a Web Server.This issue affects Nutrie: from n/a through < 2.0.1.

CWE(s): CWE-434

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?

Unrestricted file upload (CWE-434) directly enables web shell deployment (T1505.003) on a public-facing WordPress application, providing initial access and arbitrary code execution via T1190.

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