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CVE-2026-71285

Uptime Kuma Stored XSS via Matomo Analytics Site ID on Public Status Pages PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
louislam / uptime-kumaaffected 0 through 2.4.0

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.