{"id":"CVE-2021-32798","state":"PUBLISHED","title":"Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in notebook","description":"The Jupyter notebook is a web-based notebook environment for interactive computing. In affected versions untrusted notebook can execute code on load. Jupyter Notebook uses a deprecated version of Google Caja to sanitize user inputs. A public Caja bypass can be used to trigger an XSS when a victim opens a malicious ipynb document in Jupyter Notebook. The XSS allows an attacker to execute arbitrary code on the victim computer using Jupyter APIs.","publishedAt":"2021-08-09T20:50:10.000Z","updatedAt":"2024-08-03T23:33:55.864Z","severity":{"score":10,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["jupyter notebook"],"affected":[{"vendor":"jupyter","product":"notebook","versions":[{"version":">= 6.0.0, < 6.4.1","status":"affected"},{"version":"< 5.7.11","status":"affected"}]}],"references":["https://github.com/jupyter/notebook/security/advisories/GHSA-hwvq-6gjx-j797","https://github.com/jupyter/notebook/commit/79fc76e890a8ec42f73a3d009e44ef84c14ef0d5"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T19:48:33.225Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/32xxx/CVE-2021-32798.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-32798","state":"PUBLISHED","datePublished":"2021-08-09T20:50:10.000Z","dateUpdated":"2024-08-03T23:33:55.864Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2021-05-12T00:00:00.000Z"},"containers":{"cna":{"title":"Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in notebook","descriptions":[{"lang":"en","value":"The Jupyter notebook is a web-based notebook environment for interactive computing. 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