Publish GHSA-3pvf-vxrv-hh9c

Author: advisory-database[bot]

advisories/github-reviewed/2026/03/GHSA-3pvf-vxrv-hh9c/GHSA-3pvf-vxrv-hh9c.json

@@ -0,0 +1,94 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-3pvf-vxrv-hh9c",
+  "modified": "2026-03-24T16:53:24Z",
+  "published": "2026-03-24T16:53:24Z",
+  "aliases": [
+    "CVE-2026-33158"
+  ],
+  "summary": "Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR)",
+  "details": "### Summary\n\nA low-privileged authenticated user can read private asset content by calling `assets/edit-image` with an arbitrary `assetId` that they are not authorized to view.\n\nThe endpoint returns image bytes (or a preview redirect) without enforcing a per-asset view authorization check, leading to potential unauthorized disclosure of private files.\n\n### Details\n\nRoot cause:\n  - A user-controlled object reference (`assetId`) is used to load and return sensitive content.\n  - The action does not verify whether the current user is authorized to view that asset.\n  - This creates an authenticated IDOR / authorization bypass.\n\n### Impact\n\n- Craft installations where private/non-public assets exist and low-privileged users can authenticate.\n\n## Resources\n\nhttps://github.com/craftcms/cms/commit/7290d91639e",
+  "severity": [
+    {
+      "type": "CVSS_V4",
+      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Packagist",
+        "name": "craftcms/cms"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "4.0.0-RC1"
+            },
+            {
+              "fixed": "4.17.8"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 4.17.7"
+      }
+    },
+    {
+      "package": {
+        "ecosystem": "Packagist",
+        "name": "craftcms/cms"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "5.0.0-RC1"
+            },
+            {
+              "fixed": "5.9.14"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 5.9.13"
+      }
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9c"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/craftcms/cms"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/craftcms/cms/releases/tag/4.17.8"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/craftcms/cms/releases/tag/5.9.14"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-639"
+    ],
+    "severity": "MODERATE",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-03-24T16:53:24Z",
+    "nvd_published_at": null
+  }
+}