{"id":"CVE-2019-1020019","aliases":["GHSA-j9m2-6hq2-4r3c","PYSEC-2019-26"],"title":"Cross-site Scripting in invenio-previewer","summary":"Cross-site Scripting in invenio-previewer","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","vendor":"invenio-previewer","product":"invenio-previewer","ecosystem":"pip","affected":["invenio-previewer < 1.0.0a12"],"patched":["invenio-previewer 1.0.0a12"],"published":"2019-07-16","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:47:55.087537191Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-j9m2-6hq2-4r3c","references":[{"url":"https://github.com/inveniosoftware/invenio-previewer/security/advisories/GHSA-j9m2-6hq2-4r3c"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1020019"},{"url":"https://github.com/advisories/GHSA-j9m2-6hq2-4r3c"},{"url":"https://github.com/inveniosoftware/invenio-previewer"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/invenio-previewer/PYSEC-2019-26.yaml"}],"tags":["osv","pip"],"epss":0.00899,"epssPercentile":0.58139,"ingestedAt":"2026-09-12T03:13:01.704Z","slug":"CVE-2019-1020019","body":"## Overview\n\n## Cross-Site Scripting (XSS) vulnerability in JSON, Markdown and iPython Notebook previewers\n\n### Impact\nSeveral Cross-Site Scripting (XSS) vulnerabilities have been found in the JSON, Markdown and iPython Notebook previewers. The vulnerabilities would allow a malicous user to upload a JSON, Markdown or Notebook file with embedded scripts that would be executed by a victims browser.\n\n### Patches\nInvenio-Previewer v1.0.0a12 fixes the issue.\n\n### Workarounds\nYou can remediate the vulnerability without upgrading by disabling the affected previewers. You do this by adding the following to your configuration:\n\n```python\nPREVIEWER_PREFERENCE = [\n    'csv_dthreejs',\n    'simple_image',\n    # 'json_prismjs',\n    'xml_prismjs',\n    # 'mistune',\n    'pdfjs',\n    # 'ipynb',\n    'zip',\n]\n```\n\nAfterwards, you should not be able to preview JSON, Markdown or iPython Notebook files.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at [info@inveniosoftware.org](mailto:info@inveniosoftware.org)\n\n## Affected packages\n\n- `invenio-previewer < 1.0.0a12`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `invenio-previewer 1.0.0a12`","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}