---
title: "CVE-2025-10353: Melis Platform CMS Unauthenticated File Upload Leading to RCE"
url: https://erroneo.us/security/cve/CVE-2025-10353/
description: "CVE-2025-10353 (melisplatform/melis-cms-slider (Composer (PHP))): File upload leading to remote code execution (RCE) in the “melis-cms-slider” module of…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-10-08
date_modified: 2025-12-11
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-10353"
kev: false
cvss: 9.3
epss: 0.0266
license: All rights reserved. Quote with attribution and a link.
---

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

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 2.7% , percentile 86: FIRST’s model estimates a 2.7% chance of exploitation activity in the next 30 days, higher than 86% of all scored CVEs (elevated). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes melisplatform/melis-cms-slider (Composer (PHP)) < 5.3.1, fixed in 5.3.1 . Check your lockfile, including transitive dependencies.

## What it is

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 'mcsdetailimg' parameter.

## Affected packages

- Composer (PHP) `melisplatform/melis-cms-slider` < 5.3.1 → fixed: 5.3.1

## Affected products (CVE record)

- Melis Technology Melis Platform: < 5.3.1

## Severity

- INCIBE CVSS 4.0: 9.3 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`
- GitHub CVSS 4.0: 9.3 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 2.66% probability of exploitation activity in the next 30 days; percentile 86.

## Sources

- [GitHub Advisory GHSA-chw4-gjvw-3gxc](https://github.com/advisories/GHSA-chw4-gjvw-3gxc)
- [CVE.org record CVE-2025-10353](https://www.cve.org/CVERecord?id=CVE-2025-10353)
- [NVD entry CVE-2025-10353](https://nvd.nist.gov/vuln/detail/CVE-2025-10353)
- [incibe.es](https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-melis-platform)
- [github.com](https://github.com/ivansmc00/CVE-2025-10353-POC)
- [github.com](https://github.com/melisplatform/melis-cms-slider/commit/c8757338ccd2dae5d347db5f494922ecc692f614)

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Source page: https://erroneo.us/security/cve/CVE-2025-10353/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt