RajChowdhury240/CVE-2025-67435-PoC

GitHubRepository PoCWriteup

PoC files

1 file

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GitHub
Analysisdeepseek-v4-pro:cloud ·

Technical assessment

The artifact is a technical writeup describing a Zip Slip vulnerability (CVE-2025-67435) in PluckCMS. It provides a detailed explanation of the vulnerability, affected component, and exploitation steps, but does not include any executable proof-of-concept code. The only code snippet is a benign example of a PHP payload, and the exploitation steps are described in text only, with no actual exploit script provided.

Backdoor review

No backdoor observed in reviewed code

The artifact is a single README.md file describing a Zip Slip vulnerability (CVE-2025-67435) in PluckCMS. It contains no executable code, no hidden payloads, and no instructions for the reviewer to perform harmful actions. The provided PHP snippet is a benign proof-of-concept demonstrating the vulnerability, not a backdoor.

ClassificationWriteup
Model confidence95%
AuthenticationRequired
Languagesmarkdown
Target softwarePluckCMS
Attack typeszip slipremote code execution
Evidence & reasoningClassification basis · observed behavior · safety review
Technical evidence

Classification basis and observed behavior

Classification basis

The artifact is classified as a writeup because it is a substantive technical analysis of a vulnerability (CVE-2025-67435) without providing executable exploit or scanner code. The file is a single README.md containing a vulnerability report with a description, impact assessment, and recommendations. The only code present is a static, non-executable PHP snippet used as an example payload. The exploitation steps are described in prose, and no functional script to perform the attack or scan for the vulnerability is included.

README.md:1-112

Requirements

  • Administrative authentication to the PluckCMS admin panel is required to access the module upload functionality.README.md:26

Observed behavior

  • The document describes a vulnerability where a crafted ZIP archive with path traversal can place a malicious PHP file on the server, leading to remote code execution.README.md:32-34
  • The document provides a textual, step-by-step exploitation process, including preparing a malicious payload and uploading it via the module management interface.README.md:56-60
  • The document includes a static PHP code example that concatenates a function name to execute a system command, illustrating the type of payload that could be used.README.md:81-86
Safety-review evidence

Behaviors behind the backdoor verdict

Observables

Vulnerability Report
CVE-2025-67435The artifact is a vulnerability report for a Zip Slip RCE in PluckCMS.README.md:1
Proof Of Concept Code
<?php $fn = "sys" . "tem"; (string) $fn("id"); ?>A benign PHP snippet demonstrating command execution via string concatenation to bypass naive static analysis, typical of PoC code.README.md:81-86
Review boundaries

What the analysis did not establish

  • The evidence packet contains only the README.md file from the repository. The analysis scope indicates complete_text_evidence for this single file, but the repository may contain other files not included in this packet. The classification is based solely on the provided text.
  • Only the README.md file was provided; no other repository files were inspected.
  • The CVE record was absent from the acquired CVEList, so the vulnerability claim could not be independently verified against the official CVE description.
Model interpretation

This review is limited to the supplied PoC code and context. It does not assert that the code works or is safe to execute.

Linked vulnerabilities

1