{"id":"EUVD-2026-11720","revision":"29ddc872625e4bf8ae5fd8fcce61f006","records":[{"revision":"29ddc872625e4bf8ae5fd8fcce61f006","observedAt":"2026-11-01T05:08:25.561+00:00","statement":{"source":"euvd","id":"EUVD-2026-11720","aliases":["CVE-2026-32308"],"title":"OneUptime is a solution for monitoring and managing online services. Prior to 10.0.23, the Markdown viewer component renders Mermaid diagrams with securityLevel: \"loose\" and injects the SVG output via innerHTML. This configuration explicitl…","description":"OneUptime is a solution for monitoring and managing online services. Prior to 10.0.23, the Markdown viewer component renders Mermaid diagrams with securityLevel: \"loose\" and injects the SVG output via innerHTML. This configuration explicitly allows interactive event bindings in Mermaid diagrams, enabling XSS through Mermaid's click directive which can execute arbitrary JavaScript. Any field that renders markdown (incident descriptions, status page announcements, monitor notes) is vulnerable. This vulnerability is fixed in 10.0.23.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","score":7.6,"severity":null}],"references":["https://github.com/OneUptime/oneuptime/security/advisories/GHSA-wvh5-6vjm-23qh"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-11720","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Mar 12, 2026, 9:29:00 PM","dateUpdated":"Mar 14, 2026, 3:43:13 AM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-11720","identifiers":["EUVD-2026-11720","CVE-2026-32308"]},"retained":false,"historicalAffected":[]}],"coverage":[]}