CVEvulnerability

CVE-2026-71285

8.1 HIGH Published 2026-08-05 Modified 2026-10-23 Official page ↗
Status
Deferred
Published
2026-08-05
Last modified
2026-10-23
Assigner
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
CVSS 3.1 (309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c)
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
Weaknesses
CWE-79

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.

Related

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References