RajChowdhury240/CVE-2025-67435

GitHubRepository PoCWriteup

PoC files

1 file

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GitHub
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.

Linked vulnerabilities

1