Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tuzitio | Camaleon Cms | >= 2.4.5, <= 2.9.0 |
Related Weaknesses (CWE)
References
- https://camaleon.website/Product
- https://github.com/owen2345/camaleon-cms/commit/f54a77e2a7be601215ea1b396038c589Patch
- https://github.com/owen2345/camaleon-cms/pull/1127Issue TrackingPatch
- https://www.vulncheck.com/advisories/camaleon-cms-aws-uploader-authenticated-patPatchThird Party Advisory
FAQ
What is CVE-2026-1776?
CVE-2026-1776 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 fil...
How severe is CVE-2026-1776?
CVE-2026-1776 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1776?
Check the references section above for vendor advisories and patch information. Affected products include: Tuzitio Camaleon Cms.