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CVE-2026-1776— Camaleon CMS AWS Uploader Authenticated Path Traversal Arbitrary File Read

Quick assessment

Affected
owen2345 Camaleon CMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CAMALEON CMS是Owen Peredo Diaz个人开发者的一个动态高级内容管理系统。 Camaleon CMS 2.9.0及之前版本和f54a77e之前版本存在路径遍历漏洞，该漏洞源于AWS S3上传器实现中的路径遍历，可能导致经过身份验证的用户读取Web服务器文件系统中的任意文件。

AI Predicted 8.1 Difficulty: Trivial EPSS 0.73% · P52

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 2

VendorProduct Version RangeStatus
owen2345 Camaleon CMS 2.4.5.0≤ 2.9.0 affected
f54a77e2a7be601215ea1b396038c589a0cab9af unaffected
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I. Basic Information for CVE-2026-1776

Vulnerability Information
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Vulnerability Title
Camaleon CMS AWS Uploader Authenticated Path Traversal Arbitrary File Read
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
CAMALEON CMS 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CAMALEON CMS是Owen Peredo Diaz个人开发者的一个动态高级内容管理系统。 Camaleon CMS 2.9.0及之前版本和f54a77e之前版本存在路径遍历漏洞，该漏洞源于AWS S3上传器实现中的路径遍历，可能导致经过身份验证的用户读取Web服务器文件系统中的任意文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
owen2345 Camaleon CMS 2.4.5.0 ~ 2.9.0 -

II. Public POCs for CVE-2026-1776

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III. Intelligence Information for CVE-2026-1776

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Patches & Fixes for CVE-2026-1776 (2)

Vendor Advisories for CVE-2026-1776 (1)

Other References for CVE-2026-1776 (1)

IV. Related Vulnerabilities

Same product: Camaleon CMS
Same vendor: owen2345
Same weakness: CWE-22

V. Comments for CVE-2026-1776

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