---
id: CVE-2026-1776
title: >-
  Camaleon CMS versions 2.4.5.0 through 2.9.0, prior to commit f54a77e, contain
  a path traversal vulnerability in the AWS S3 uploader implementation that
  allows authenticated users to read arbitrary files from the web server’s
  filesystem
summary: >-
  Camaleon CMS versions 2.4.5.0 through 2.9.0, prior to commit f54a77e, contain
  a path traversal vulnerability in the AWS S3 uploader implementation that
  allows authenticated users to read arbitrary files from the web server’s
  filesystem. …
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-22
vendor: tuzitio
product: camaleon_cms
affected:
  - 'camaleon_cms >= 2.4.5, <= 2.9.0'
published: '2026-03-10'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:17:10.647'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-1776'
references:
  - url: 'https://camaleon.website/'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/owen2345/camaleon-cms/commit/f54a77e2a7be601215ea1b396038c589a0cab9af
    label: disclosure@vulncheck.com
  - url: 'https://github.com/owen2345/camaleon-cms/pull/1127'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/camaleon-cms-aws-uploader-authenticated-path-traversal-arbitrary-file-read
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-03-10T14:57:09.790742Z'
scores:
  nvd: 6.5
  cna: 6
epss: 0.0076
epssPercentile: 0.53877
ingestedAt: '2026-10-08T16:52:14.674Z'
---

## Overview

Camaleon CMS versions 2.4.5.0 through 2.9.0, prior to commit f54a77e, contain a path traversal vulnerability in the AWS S3 uploader implementation that allows authenticated users to read arbitrary files from the web server’s filesystem. The issue occurs in the download_private_file functionality when the application is configured to use the CamaleonCmsAwsUploader backend. Unlike the local uploader implementation, the AWS uploader does not validate file paths with valid_folder_path?, allowing directory traversal sequences to be supplied via the file parameter. As a result, any authenticated user, including low-privileged registered users, can access sensitive files such as /etc/passwd. This issue represents a bypass of the incomplete fix for CVE-2024-46987 and affects deployments using the AWS S3 storage backend.

## Affected

- `camaleon_cms >= 2.4.5, <= 2.9.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.