{"action":"Upgrade open-webui to 0.9.3 or later.","affected":[{"fixed":"0.9.3","introduced":"0"}],"component":"open-webui","cve_ids":["CVE-2026-45318"],"ecosystem":"PyPI","epss":0.00209,"exploited":false,"fixed_versions":["0.9.3"],"ghsa_id":"GHSA-hcwp-82g6-8wxc","id":"tcs_01M5KFKFDVH0T3WRE80K5T80WP","modified_at":"2026-07-13T16:42:45.388274908Z","published_at":"2026-05-14T20:18:27Z","references":["https://osv.dev/vulnerability/GHSA-hcwp-82g6-8wxc","https://github.com/open-webui/open-webui/security/advisories/GHSA-hcwp-82g6-8wxc","https://github.com/open-webui/open-webui/security/advisories/GHSA-jwf8-pv5p-vhmc","https://nvd.nist.gov/vuln/detail/CVE-2026-45318","https://github.com/open-webui/open-webui","https://github.com/open-webui/open-webui/releases/tag/v0.9.3"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"GHSA-hcwp-82g6-8wxc","url":"https://osv.dev/vulnerability/GHSA-hcwp-82g6-8wxc"}],"summary":"Open WebUI has stored XSS via unsanitized Office/Excel/DOCX file preview rendering ({@html} without DOMPurify)"}