Publish GHSA-5pgf-h923-m958

Author: advisory-database[bot]

advisories/github-reviewed/2026/03/GHSA-5pgf-h923-m958/GHSA-5pgf-h923-m958.json

@@ -0,0 +1,95 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-5pgf-h923-m958",
+  "modified": "2026-03-24T16:59:58Z",
+  "published": "2026-03-24T16:59:58Z",
+  "aliases": [
+    "CVE-2026-33160"
+  ],
+  "summary": "Craft CMS may expose private assets through anonymous \"generate transform\" calls via transform URL",
+  "details": "### Summary\n\nAn unauthenticated user can call `assets/generate-transform` with a private `assetId`, receive a valid transform URL, and fetch transformed image bytes.\n\nThe endpoint is anonymous and does not enforce per-asset authorization before returning the transform URL.\n\n### Details\n\nRoot cause:\n- Anonymous endpoint accepts user-controlled asset reference.\n- It creates and returns a transform URL for that asset without checking access rights.\n- If the transform output is reachable, guest users can read content derived from private assets.\n\nWho is impacted:\n\n- Installations where private source assets can be transformed and transform URLs are reachable.\n\nSecurity consequence:\n\n  - Anonymous users can obtain content derived from private assets without authentication.\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:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U"
+    }
+  ],
+  "affected": [
+    {
+      "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"
+      }
+    },
+    {
+      "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"
+      }
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/craftcms/cms/security/advisories/GHSA-5pgf-h923-m958"
+    },
+    {
+      "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",
+      "CWE-862"
+    ],
+    "severity": "LOW",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-03-24T16:59:58Z",
+    "nvd_published_at": null
+  }
+}