CVE-2025-67435

Search associated code STIX 2.1 with PoCs

Record summary

EIP currently links 2 repository PoCs to CVE-2025-67435.

Exploitation context

Available material

Repository PoCs
2

Proofs of concept

2

Repository PoCs

GitHubRajChowdhury240/CVE-2025-67435Repository PoCby RajChowdhury2401Writeup1 file

3.0 KiB

GitHub
PoC details
Analysisdeepseek-v4-pro:cloud ·

Technical assessment

The artifact is a README.md file that describes a vulnerability (CVE-2025-67435) in PluXml CMS 5.8.22. It provides a step-by-step narrative of how an authenticated administrator could achieve remote code execution by editing a theme file to include a PHP web shell. The file contains example PHP code for a web shell but does not contain any automated exploit script, scanner, or tool. It is a technical writeup with embedded code snippets for illustration.

Backdoor review

No backdoor observed in reviewed code

The artifact is a single README.md file documenting a proof of concept for CVE-2025-67436, an authenticated RCE in PluXml CMS. The file describes a manual attack path (login, edit theme, inject PHP webshell) and provides example PHP code for a webshell. No concealed, deceptive, or unrelated malicious behavior is present; the content is a straightforward disclosure of the described vulnerability.

ClassificationWriteup
Model confidence95%
AuthenticationRequired
Languagesmarkdownphphtml
Target softwarePluXml CMS 5.8.22
Attack typesremote_code_execution
Evidence & reasoningClassification basis · observed behavior · safety review
Technical evidence

Classification basis and observed behavior

Classification basis

The artifact is a README.md file that provides a technical description of a vulnerability and manual exploitation steps. It includes illustrative code snippets (a PHP web shell) but does not contain any automated exploit or scanner code. The analysis routing classification is NO_POC_CODE_IDENTIFIED, and the content is a writeup.

README.md:1-94

Requirements

  • Authentication: Log in to the PluXML administrator panel with valid administrator credentials.README.md:27
  • Access to Theme Editor: Navigate to the administration panel's theme editor for home.php.README.md:28-31

Observed behavior

  • The writeup describes replacing the content of home.php with a PHP web shell, saving the file, and then visiting the main page to execute arbitrary commands via a cmd GET parameter.README.md:35-46
  • The writeup includes an example PHP web shell that uses the system function to execute commands passed via the cmd GET parameter.README.md:54-81
Safety-review evidence

Behaviors behind the backdoor verdict

Observables

Vulnerability Disclosure
CVE-2025-67436The README documents an authenticated RCE in PluXml CMS 5.8.22 via theme editing.README.md:1-2
Payload Example
<?php system($_GET['cmd']); ?>Example PHP webshell payload provided in the PoC instructions.README.md:38
Payload Example
HTML form with PHP execution via concatenated 'sys'.'tem'A more elaborate webshell example is provided, using string concatenation to call system().README.md:54-81
Review boundaries

What the analysis did not establish

  • The evidence packet contains only the README.md file; no other source code, scripts, or configuration files are included.
  • The analysis routing metadata indicates NO_POC_CODE_IDENTIFIED and NO_EXECUTABLE_SOURCE_IDENTIFIED.
  • The CVE record for CVE-2025-67435 was absent from the acquired CVEList V5 dataset.
  • Only the README.md file was reviewed; no other files were present in the repository snapshot.
  • Embedded images are not analyzed; they are referenced as external GitHub user attachment URLs and could not be inspected for hidden content.
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.

GitHubRajChowdhury240/CVE-2025-67435-PoCRepository PoCby RajChowdhury2400Writeup1 file

4.9 KiB

GitHub
PoC details
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.