{"id":"CVE-2026-71285","published":"2026-08-05T13:24:53.210","lastModified":"2026-08-10T12:17:31.150","description":"Uptime Kuma's Matomo analytics integration (server/analytics/matomo-analytics.js) injects the admin-configurable Matomo value as a bare, unquoted JavaScript expression inside a <script> block rendered on every public status page. A siteId value such as , once saved by an editor/admin, executes arbitrary JavaScript for every unauthenticated visitor of the public /status/<slug> page, enabling session-cookie theft and full page takeover.","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/louislam/uptime-kuma","tags":[]},{"url":"https://github.com/louislam/uptime-kuma/blob/master/server/analytics/matomo-analytics.js","tags":[]}],"exploitRefs":[{"url":"https://github.com/louislam/uptime-kuma","tags":[]},{"url":"https://github.com/louislam/uptime-kuma/blob/master/server/analytics/matomo-analytics.js","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows unauthenticated visitors to execute arbitrary JavaScript, leading to potential session-cookie theft and full page takeover.","exploitability":"Exploitation is relatively easy once the admin-configurable Matomo value is set to a malicious payload.","blast_radius":"If exploited, the impact could be severe, as it affects every unauthenticated visitor to the public /status/<slug> page.","remediation":"Disable the Matomo analytics integration or ensure the Matomo value is properly quoted to prevent unquoted JavaScript execution.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","web","javascript","unquoted","arbitrary-execution"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-10-05T08:45:37.947Z"}}