Publish GHSA-xm59-rqc7-hhvf

Author: advisory-database[bot]

advisories/github-reviewed/2025/12/GHSA-xm59-rqc7-hhvf/GHSA-xm59-rqc7-hhvf.json

@@ -0,0 +1,65 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-xm59-rqc7-hhvf",
+  "modified": "2025-12-18T22:03:08Z",
+  "published": "2025-12-18T22:03:08Z",
+  "aliases": [
+    "CVE-2025-53000"
+  ],
+  "summary": "nbconvert has an uncontrolled search path that leads to unauthorized code execution on Windows",
+  "details": "### Summary\n\nOn Windows, converting a notebook containing SVG output to a PDF results in unauthorized code execution. Specifically, a third party can create a `inkscape.bat` file that defines a [Windows batch script](https://en.wikipedia.org/wiki/Batch_file), capable of arbitrary code execution.\n\nWhen a user runs `jupyter nbconvert --to pdf` on a notebook containing SVG output to a PDF on a Windows platform from this directory, the `inkscape.bat` file is run unexpectedly.\n\n### Details\n_Give all details on the vulnerability. Pointing to the incriminated source code is very helpful for the maintainer._\n\n`nbconvert` searches for an `inkscape` executable when converting notebooks to PDFs here: https://github.com/jupyter/nbconvert/blob/4f61702f5c7524d8a3c4ac0d5fc33a6ac2fa36a7/nbconvert/preprocessors/svg2pdf.py#L104\n\nThe MITRE page on [CWE-427 (Uncontrolled Search Path Element)](https://cwe.mitre.org/data/definitions/427.html) summarizes the root cause succinctly:\n\n> In Windows-based systems, when the `LoadLibrary` or `LoadLibraryEx` function is called with a DLL name that does not contain a fully qualified path, the function follows a search order that includes two path elements that might be uncontrolled:\n> - the directory from which the program has been loaded\n> - the current working directory\n\n### PoC\n\n_Complete instructions, including specific configuration details, to reproduce the vulnerability._\n\n1. Create a directory containing: \n\n    - A hidden bat file called `inkscape.bat` containing `msg * \"You've been hacked!\"`\n\n    - A dummy ipynb file called `Machine_Learning.ipynb`\n\n2. Run the command `jupyter nbconvert --to pdf Machine_Learning.ipynb`.\n\n3. Wait a few seconds, and you should see a popup showing the message \"You've been hacked!\" \n\n### Impact\n\nAll Windows users.",
+  "severity": [
+    {
+      "type": "CVSS_V4",
+      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "PyPI",
+        "name": "nbconvert"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "last_affected": "7.16.6"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "ADVISORY",
+      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53000"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/jupyter/nbconvert"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/jupyter/nbconvert/blob/4f61702f5c7524d8a3c4ac0d5fc33a6ac2fa36a7/nbconvert/preprocessors/svg2pdf.py#L104"
+    },
+    {
+      "type": "WEB",
+      "url": "https://www.imperva.com/blog/code-execution-in-jupyter-notebook-exports"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-427"
+    ],
+    "severity": "HIGH",
+    "github_reviewed": true,
+    "github_reviewed_at": "2025-12-18T22:03:08Z",
+    "nvd_published_at": "2025-12-17T21:16:14Z"
+  }
+}