Cyber Resilience

CVE-2023-51409

Critical

Published: 12 April 2024

Published
12 April 2024
Modified
28 April 2026
KEV Added
Patch
CVSS Score v3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.9291 99.8th percentile
Risk Priority 76 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-51409 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Meowapps Ai Engine. Its CVSS base score is 10.0 (Critical).

Operationally, ranked in the top 0.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

This vulnerability is AI-related — categorised as APIs and Models.

Deeper analysis

The vulnerability is an unrestricted upload of a file with a dangerous type (CWE-434) in the AI Engine: ChatGPT Chatbot WordPress plugin developed by Jordy Meow. It affects all versions through 1.9.98 and carries a CVSS 3.1 score of 10.0, reflecting network-accessible exploitation with no required authentication or user interaction and full impact across confidentiality, integrity, and availability with a scope change.

An unauthenticated attacker can send a crafted request to upload arbitrary files, including executable code such as PHP webshells. Successful exploitation grants remote code execution on the underlying server, enabling complete site takeover or lateral movement within the hosting environment. Public proof-of-concept code demonstrates a 0-click remote code execution path.

Patchstack advisories identify the flaw as an unauthenticated arbitrary file upload and recommend immediate upgrade to a fixed release once available. The presence of a publicly posted exploit on GitHub increases the urgency of remediation for any site running the affected plugin.

The EPSS score remains extremely high at approximately 0.93, indicating sustained exploitation interest following disclosure.

EU & UK References

Vulnerability details

Unrestricted Upload of File with Dangerous Type vulnerability in Jordy Meow AI Engine: ChatGPT Chatbot.This issue affects AI Engine: ChatGPT Chatbot: from n/a through 1.9.98.

CWE(s)

AI Security AnalysisAI

AI Category
APIs and Models
Risk Domain
N/A
OWASP Top 10 for LLMs 2025
None mapped
Classification Reason
Matched keywords: ai, ai

Related Threats

Affected Assets

meowapps
ai engine
≤ 1.9.99

Mitigating Controls

Likely Mitigating Controls AI

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.

addresses: CWE-434

Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.

addresses: CWE-434

Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.

addresses: CWE-434

Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.

addresses: CWE-434

Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.

References