Camaleon CMS AWS Uploader Authenticated Path Traversal Arbitrary File Read

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-1776",
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "dateUpdated": "2026-03-09T21:08:06.600Z",
    "dateReserved": "2026-02-02T18:05:13.516Z",
    "datePublished": "2026-03-09T21:08:06.600Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck",
        "dateUpdated": "2026-03-09T21:08:06.600Z"
      },
      "title": "Camaleon CMS AWS Uploader Authenticated Path Traversal Arbitrary File Read",
      "descriptions": [
        {
          "lang": "en",
          "value": "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.",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "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."
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "owen2345",
          "product": "Camaleon CMS",
          "packageName": "camaleon-cms",
          "repo": "https://github.com/owen2345/camaleon-cms",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2.4.5.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "2.9.0"
            },
            {
              "version": "commit f54a77e",
              "status": "unaffected",
              "versionType": "custom"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
              "cweId": "CWE-22",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/owen2345/camaleon-cms/pull/1127",
          "tags": [
            "issue-tracking"
          ]
        },
        {
          "url": "https://github.com/owen2345/camaleon-cms/commit/f54a77e2a7be601215ea1b396038c589a0cab9af",
          "tags": [
            "patch"
          ]
        },
        {
          "url": "https://camaleon.website/",
          "tags": [
            "product"
          ]
        },
        {
          "url": "https://www.vulncheck.com/advisories/camaleon-cms-aws-uploader-authenticated-path-traversal-arbitrary-file-read",
          "tags": [
            "third-party-advisory"
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Michael Loomis (investigato)",
          "type": "finder"
        },
        {
          "lang": "en",
          "value": "VulnCheck",
          "type": "coordinator"
        }
      ]
    }
  }
}