ApostropheCMS: Page REST API authorization bypass

{
  "id": "c1cee7ac743c05e8872f42b05f5b819622777ef385451a52bca42ea7bde4b11c",
  "url": "https://osv.dev/vulnerability/GHSA-2j32-q6rx-h844",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ApostropheCMS: Page REST API authorization bypass",
    "summary": "**Summary** The core page REST API reads full page documents with `.permission(false)` in `getOne` and in the `all=1` tree dump, bypassing page-type `viewRole`, `visibility: private`, and `visibility: loginRequired` checks. Unauthenticated visitors and low-privilege contributors can read admin-only and non-public page content by `_id`/slug. **Details** `packages/apostrophe/modules/@apostrophecms/page/index.js`: - `getOne` (L456–465): `await self.publicApiCheckAsync(req); ... self.getRestQuery(req).permission(false).and(criteria)` — no `viewRole` threshold, no `visibility` filtering. - `all` handler (L318–395): `getRestQuery(req).permission(false)` (L384–385) walks every page type and returns the projection including `visibility`. - `publicApiCheckAsync` (L3044) only checks that `publicApiProjection` exists — it performs no authorization. - Correct control behaves differently: `piece-type/index.js:getOne` (L319–327) uses `getRestQuery(req)` without `.permission(false)` and enforces `viewRole`. **PoC** ``` # Anonymous (no session) — private, admin-only page: curl \"http://localhost:3100/api/v1/@apostrophecms/page/d576242ve1dkzb12jiiabujd:en:published\" # → 200 {\"_id\":\"...:en:published\",\"title\":\"Secret Private Page\",\"slug\":\"/secret-page\", # \"type\":\"private-type\",\"visibility\":\"private\",\"secretData\":\"TOP-SECRET-VALUE-abc123\"} # Anonymous full site-map dump (includes private + loginRequired pages): curl \"http://localhost:3100/api/v1/@apostrophecms/page?all=1\" # → 200, full tree # Con",
    "evidence": "osv:GHSA-2j32-q6rx-h844",
    "products": [
      {
        "name": {
          "value": "apostrophe",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.33.0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "GHSA-2j32-q6rx-h844",
      "aliases": [
        "CVE-2026-110904",
        "CVE-2026-113670",
        "GHSA-2j32-q6rx-h844"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.33.0"
                }
              ]
            }
          ],
          "package": {
            "name": "apostrophe",
            "purl": "pkg:npm/apostrophe",
            "ecosystem": "npm"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-2j32-q6rx-h844/GHSA-2j32-q6rx-h844.json"
          }
        }
      ],
      "modified": "2026-10-20T18:41:05.051855550Z",
      "provider": "osv",
      "references": [
        "https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-2j32-q6rx-h844",
        "https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce",
        "https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350",
        "https://github.com/apostrophecms/apostrophe",
        "https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "severity": "MODERATE",
        "github_reviewed": true,
        "nvd_published_at": null,
        "github_reviewed_at": "2026-10-20T18:13:08Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-110904",
        "evidence": "/aliases"
      },
      {
        "value": "CVE-2026-113670",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 390154,
  "published_at": "2026-10-20T18:13:08+00:00"
}