CVE-2025-10353: 
PHP vulnerability analysis and mitigation

CVE-2025-10353 is a critical vulnerability discovered in the "melis-cms-slider" module of Melis Technology's Melis Platform, disclosed on October 8, 2025. The vulnerability affects versions prior to 5.3.1 of the melis-cms-slider module. This security flaw has been assigned a CVSS v4.0 base score of 9.3 (Critical), indicating its severe nature (INCIBE Advisory).

The vulnerability is classified as CWE-43 (Path Equivalence: 'filename....' Multiple Trailing Dot) and allows attackers to perform remote code execution through a malicious file upload mechanism. The vulnerability exists in the saveDetailsFormAction function within the MelisCmsSliderDetailsController, which processes file uploads without proper validation. An attacker can exploit this by sending a POST request to '/melis/MelisCmsSlider/MelisCmsSliderDetails/saveDetailsForm' using the 'mcsdetail_img' parameter (Miggo Analysis, NVD).

The successful exploitation of this vulnerability can lead to remote code execution on the affected system. The CVSS scoring indicates high impacts on confidentiality, integrity, and availability (VC:H/VI:H/VA:H), with no subsequent system impacts (SC:N/SI:N/SA:N). This means an attacker could potentially gain complete control over the affected component (INCIBE Advisory).

Melis Technology has addressed this vulnerability by releasing version 5.3.1 of the melis-cms-slider module. The patch implements proper file validation in the form configuration by adding a FileExtension validator for the mcsdetail_img field. Organizations using affected versions should upgrade to version 5.3.1 or later immediately (Miggo Analysis).