Camaleon CMS vulnerable to Path Traversal through AWS S3 uploader implementation

TRUNG BÌNH 6.5CVE-2026-1776 · GHSA-jw5g-f64p-6x78 · Công bố 10/03/2026 · cập nhật 08/10/2026

Tóm tắt nhanh

CVE-2026-1776 là lỗ hổng mức TRUNG BÌNH (CVSS 6.5) ảnh hưởng camaleon_cms, camaleon cms (tuzitio).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.78%, cao hơn 55.9% các lỗ hổng khác.
Chưa có phiên bản vá trong dữ liệu: theo dõi khuyến cáo của nhà cung cấp ở phần Tham khảo.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
camaleon_cms RubyGems	`≥ 2.4.5.0, ≤ 2.9.1`	Chưa có bản vá
camaleon cms tuzitio	`≥ 2.4.5, ≤ 2.9.0`	Chưa có bản vá

Mô tả

Camaleon CMS versions 2.4.5.0 through 2.9.1, 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.

Mô tả của NVD

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.