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Vulnerability record · CVE-2026-1776 · published 10 March 2026

CVE-2026-1776: Tuzitio camaleon cms path traversal vulnerability

Tuzitio · 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.

6.0 CVSS 4.0 Medium EPSS 0.73% · top 47.5% CWE-22 · Path traversal
6.0CVSS 4.0 base score
0.73%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
14 Jul 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://camaleon.website/ Product
https://github.com/owen2345/camaleon-cms/commit/f54a77e2a7be601215ea1b396038c589a0cab9af Patch
https://github.com/owen2345/camaleon-cms/pull/1127 Issue TrackingPatch
https://www.vulncheck.com/advisories/camaleon-cms-aws-uploader-authenticated-path-traversal-arbitrary-file-read PatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2024-46986Tuzitio camaleon cms injection vulnerabilityCamaleon CMS is a dynamic and advanced content management system based on Ruby on Rails. An arbitrary file write vulnerability accessible via the upl…EPSS 41%9.8CVE-2023-30145Camaleon CMS SSTI via formats parameterCamaleon CMS v2.7.0 contains a server-side template injection flaw reached through the formats parameter. Because template injection lets an attacker…EPSS 46%analysed8.8CVE-2021-25970Tuzitio camaleon cms insufficient session expiration vulnerabilityCamaleon CMS 0.1.7 to 2.6.0 doesn’t terminate the active session of the users, even after the admin changes the user’s password. A user that was alre…EPSS 1.3%7.7CVE-2024-46987Tuzitio camaleon cms path traversal vulnerabilityCamaleon CMS is a dynamic and advanced content management system based on Ruby on Rails. A path traversal vulnerability accessible via MediaControlle…EPSS 15%6.1CVE-2021-25969Tuzitio camaleon cms cross-site scripting vulnerabilityIn Camaleon CMS application, versions 0.0.1 to 2.6.0 are vulnerable to stored XSS, that allows an unauthenticated attacker to store malicious scripts…EPSS 0.81%6.1CVE-2018-18260Tuzitio camaleon cms cross-site scripting vulnerabilityIn the 2.4 version of Camaleon CMS, Stored XSS has been discovered. The profile image in the User settings section can be run in the update / upload …EPSS 1.0%5.1CVE-2023-53936Tuzitio camaleon cms cross-site scripting vulnerabilityCameleon CMS 2.7.4 contains a persistent cross-site scripting vulnerability that allows authenticated administrators to inject malicious scripts into…EPSS 0.25%4.9CVE-2021-25972Tuzitio camaleon cms server-side request forgery (ssrf) vulnerabilityIn Camaleon CMS, versions 2.1.2.0 to 2.6.0, are vulnerable to Server-Side Request Forgery (SSRF) in the media upload feature, which allows admin user…EPSS 0.99%

Source: NIST National Vulnerability Database (record CVE-2026-1776), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.