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CVE-2025-10353

CVE-2025-10353: Melis Platform CMS Unauthenticated File Upload Leading to RCE

File upload leading to remote code execution (RCE) in the “melis-cms-slider” module of Melis Technology's Melis Platform. This vulnerability allows an attacker to upload a malicious file via a POST request to '/melis/MelisCmsSlider/MelisCmsSliderDetails/saveDetailsForm' using the 'mcsdetail_img' parameter.

(GitHub Advisory)

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CVE-2025-10353

CVE-2025-10353:

N/A

CVSS Score

-

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
melisplatform/melis-cms-slider	composer	< 5.3.1	5.3.1

Technical Details

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Root Cause Analysis

The vulnerability described is an unauthenticated file upload leading to Remote Code Execution in the 'melis-cms-slider' module of the Melis Platform. The provided commit c8757338ccd2dae5d347db5f494922ecc692f614 directly addresses this issue.

The analysis of the patch reveals that the core of the vulnerability is in how file uploads are handled. The file src/Controller/MelisCmsSliderDetailsController.php contains the saveDetailsFormAction function, which is responsible for processing the form containing the file upload. The code shows that this function retrieves the uploaded file from the request. The patch introduces validation by modifying the form configuration in config/app.forms.php to include a FileExtension validator for the mcsdetail_img field. This explicitly shows that, prior to the patch, no such validation was in place.

Therefore, the saveDetailsFormAction function is the vulnerable function. When a malicious file is uploaded, this is the function that would process it, and its name would appear in a runtime profile or stack trace during exploitation. The lack of proper validation within this function's logic (before the form validation was added) is the root cause of the vulnerability.

Vulnerable functions

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WAF Rule

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Reasoning

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