Vulnerabilities in pkg:gem/camaleon_cms

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jw5g-f64p-6x78",
  "modified" : "2026-04-24T20:45:33Z",
  "published" : "2026-03-10T09:31:46Z",
  "aliases" : [ "CVE-2026-1776" ],
  "summary" : "Camaleon CMS vulnerable to Path Traversal through AWS S3 uploader implementation",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "camaleon_cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.4.5.0"
      }, {
        "last_affected" : "2.9.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-1776"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/owen2345/camaleon-cms/pull/1127"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/owen2345/camaleon-cms/commit/f54a77e2a7be601215ea1b396038c589a0cab9af"
  }, {
    "type" : "WEB",
    "url" : "https://camaleon.website"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/owen2345/camaleon-cms"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/camaleon_cms/CVE-2026-1776.yml"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/camaleon-cms-aws-uploader-authenticated-path-traversal-arbitrary-file-read"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-11T00:31:16Z",
    "nvd_published_at" : "2026-03-10T07:38:01Z"
  }
}