{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "decidim-demographics"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.31.0"
            },
            {
              "fixed": "0.31.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "decidim-demographics"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.32.0.rc1"
            },
            {
              "fixed": "0.32.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-45086"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-13T16:51:05Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Description\n\nA participant can load the demographics questionnaire admin editor and make changes.\n\n## Technical description\n\nThe demographics questionnaire editor should require admin access, but the route under `/admin/demographics/questions` renders the editor interface without checking whether the caller is an admin. A normal participant can load the page and see the live update form action, which proves the protected interface is reachable.\n\nReproduction steps:\n\nStep 1. Sign in as a normal participant: Open `http://localhost:3000/users/sign_in`.\nStep 2. Request the admin-only editor directly. Open `http://localhost:3000/admin/demographics/questions/edit_questions` in the same browser.\nStep 3. Add another question:\n\n\u003cimg width=\"1522\" height=\"1174\" alt=\"decidim-questions-01\" src=\"https://github.com/user-attachments/assets/923f85d4-0e2f-4511-a9f3-a92f74dbf1d8\" /\u003e\n\nNote that access was denied when attempting to see question responses or settings.\n\n### Impact\n\n- Low-privilege users can access questionnaire-admin interfaces.\n- They can read question-management surfaces that should remain limited to questionnaire managers.\n \n### Patches\n\nSee https://github.com/decidim/decidim/pull/16665 \n\n### Workarounds\n\nDisable the \"decidim-demographics\" module \n\n### Reference\n\nOWASP A01:2021 Broken Access Control\n\n### Credits\n\nThis issue was discovered in a security audit organized by the [Decidim Association](https://decidim.org) and made by [Radically Open Security](https://www.radicallyopensecurity.com/) against Decidim financed by [NGI](https://ngi.eu/).",
  "id": "GHSA-vq6j-hj8w-7v39",
  "modified": "2026-07-13T16:51:05Z",
  "published": "2026-07-13T16:51:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/decidim/decidim/security/advisories/GHSA-vq6j-hj8w-7v39"
    },
    {
      "type": "WEB",
      "url": "https://github.com/decidim/decidim/pull/16665"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/decidim/decidim"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Decidim: Forms admin question editor lacks authorization"
}