CVE-2026-1776: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in owen2345 Camaleon CMS
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.
AI Analysis
Technical Summary
CVE-2026-1776 is a path traversal vulnerability (CWE-22) in Camaleon CMS's AWS S3 uploader implementation affecting versions 2.4.5.0 through 2.9.0 before commit f54a77e. The vulnerability exists in the download_private_file functionality where the AWS uploader backend fails to validate file paths using valid_folder_path?, allowing directory traversal sequences via the file parameter. Authenticated users with low privileges can exploit this to read arbitrary files on the server, such as /etc/passwd. This vulnerability represents a bypass of the incomplete fix for CVE-2024-46987 and impacts deployments configured with the CamaleonCmsAwsUploader backend.
Potential Impact
Authenticated users, including low-privileged registered users, can read arbitrary files from the web server's filesystem. This can lead to disclosure of sensitive information stored on the server, potentially compromising system security and privacy. The vulnerability specifically affects deployments using the AWS S3 uploader backend, bypassing prior mitigations.
Mitigation Recommendations
A patch is available for this vulnerability. Users should update Camaleon CMS to a version including the commit f54a77e or later that fixes this path traversal issue. Since this is a cloud service component, the vendor manages remediation for the cloud-hosted service; users should verify with the vendor advisory for confirmation and apply updates accordingly.
CVE-2026-1776: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in owen2345 Camaleon CMS
Description
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.
CVSS v4.0
Score 6.0medium
Affected software
pkg:github/owen2345/camaleon-cmsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-1776 is a path traversal vulnerability (CWE-22) in Camaleon CMS's AWS S3 uploader implementation affecting versions 2.4.5.0 through 2.9.0 before commit f54a77e. The vulnerability exists in the download_private_file functionality where the AWS uploader backend fails to validate file paths using valid_folder_path?, allowing directory traversal sequences via the file parameter. Authenticated users with low privileges can exploit this to read arbitrary files on the server, such as /etc/passwd. This vulnerability represents a bypass of the incomplete fix for CVE-2024-46987 and impacts deployments configured with the CamaleonCmsAwsUploader backend.
Potential Impact
Authenticated users, including low-privileged registered users, can read arbitrary files from the web server's filesystem. This can lead to disclosure of sensitive information stored on the server, potentially compromising system security and privacy. The vulnerability specifically affects deployments using the AWS S3 uploader backend, bypassing prior mitigations.
Mitigation Recommendations
A patch is available for this vulnerability. Users should update Camaleon CMS to a version including the commit f54a77e or later that fixes this path traversal issue. Since this is a cloud service component, the vendor manages remediation for the cloud-hosted service; users should verify with the vendor advisory for confirmation and apply updates accordingly.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-02-02T18:05:13.516Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Is Cloud Service
- true
Threat ID: 69af3955ea502d3aa8c59c75
Added to database: 03/09/2026, 21:19:17 UTC
Last enriched: 07/15/2026, 11:00:12 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 259
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