Vulnerability Details CVE-2026-1776
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 25.9%
CVSS Severity
CVSS v3 Score 6.5
References
Products affected by CVE-2026-1776
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.5
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.5.1
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.5.10
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.5.11
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.5.12
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.5.13
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.5.14
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.5.7
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.6.0
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.6.1
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cpe:2.3:a:tuzitio:camaleon_cms:2.4.6.7
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cpe:2.3:a:tuzitio:camaleon_cms:2.5.1
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cpe:2.3:a:tuzitio:camaleon_cms:2.5.3
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cpe:2.3:a:tuzitio:camaleon_cms:2.5.3.1
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cpe:2.3:a:tuzitio:camaleon_cms:2.6.0
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cpe:2.3:a:tuzitio:camaleon_cms:2.6.0.1
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cpe:2.3:a:tuzitio:camaleon_cms:2.6.1
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cpe:2.3:a:tuzitio:camaleon_cms:2.6.2
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cpe:2.3:a:tuzitio:camaleon_cms:2.6.3
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cpe:2.3:a:tuzitio:camaleon_cms:2.6.4
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cpe:2.3:a:tuzitio:camaleon_cms:2.7.0
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cpe:2.3:a:tuzitio:camaleon_cms:2.7.1
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cpe:2.3:a:tuzitio:camaleon_cms:2.7.2
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cpe:2.3:a:tuzitio:camaleon_cms:2.7.3
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cpe:2.3:a:tuzitio:camaleon_cms:2.7.4
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cpe:2.3:a:tuzitio:camaleon_cms:2.7.5
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cpe:2.3:a:tuzitio:camaleon_cms:2.8.0
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cpe:2.3:a:tuzitio:camaleon_cms:2.8.2