CVE-2026-71285

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 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/ page, enabling session-cookie theft and full page takeover.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 10, 2026

Advisory Details (2)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

uptime-kuma/server/analytics/matomo-analytics.js at master · louislam/uptime-kuma · GitHub

https://github.com/louislam/uptime-kuma/blob/master/server/analytics/matomo-analytics.js
generic

GitHub - louislam/uptime-kuma: A fancy self-hosted monitoring tool · GitHub

https://github.com/louislam/uptime-kuma

Vendor Advisories for CVE-2026-71285(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 27× in last 7d / 68× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 20:45 UTCGHSA enrichment
  3. 2026-08-20 07:49 UTCGHSA enrichment
  4. 2026-08-19 18:53 UTCEG score recompute
  5. 2026-08-19 18:53 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 04:44 UTCGHSA enrichment
  8. 2026-08-18 15:46 UTCEG score recompute
  9. 2026-08-18 15:46 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 01:29 UTCEG score recompute
  13. 2026-08-18 01:29 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 12:33 UTCGHSA enrichment
  16. 2026-08-16 23:37 UTCEG score recompute
  17. 2026-08-16 23:37 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 10:40 UTCEG score recompute
  21. 2026-08-16 10:40 UTCGHSA enrichment
  22. 2026-08-16 02:15 UTCEPSS rescore
  23. 2026-08-15 21:45 UTCGHSA enrichment
  24. 2026-08-15 08:49 UTCEG score recompute
  25. 2026-08-15 08:49 UTCGHSA enrichment
Show 43 more
  1. 2026-08-15 01:31 UTCEPSS rescore
  2. 2026-08-14 19:52 UTCGHSA enrichment
  3. 2026-08-14 06:56 UTCEG score recompute
  4. 2026-08-14 06:56 UTCGHSA enrichment
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-13 18:00 UTCGHSA enrichment
  7. 2026-08-13 05:04 UTCGHSA enrichment
  8. 2026-08-12 16:09 UTCEG score recompute
  9. 2026-08-12 16:09 UTCGHSA enrichment
  10. 2026-08-12 13:51 UTCEPSS rescore
  11. 2026-08-12 03:13 UTCGHSA enrichment
  12. 2026-08-11 14:16 UTCEG score recompute
  13. 2026-08-11 14:16 UTCGHSA enrichment
  14. 2026-08-11 01:20 UTCEG score recompute
  15. 2026-08-11 01:20 UTCGHSA enrichment
  16. 2026-08-11 00:00 UTCEPSS rescore
  17. 2026-08-10 12:24 UTCEG score recompute
  18. 2026-08-10 12:24 UTCGHSA enrichment
  19. 2026-08-10 11:42 UTCGHSA enrichment
  20. 2026-08-10 11:21 UTCEG score recompute
  21. 2026-08-10 11:21 UTCGHSA enrichment
  22. 2026-08-09 23:59 UTCEG score recompute
  23. 2026-08-09 23:59 UTCGHSA enrichment
  24. 2026-08-09 13:47 UTCEPSS rescore
  25. 2026-08-09 11:04 UTCGHSA enrichment
  26. 2026-08-08 22:07 UTCEG score recompute
  27. 2026-08-08 22:07 UTCGHSA enrichment
  28. 2026-08-08 16:37 UTCEPSS rescore
  29. 2026-08-08 09:10 UTCGHSA enrichment
  30. 2026-08-07 20:14 UTCEG score recompute
  31. 2026-08-07 20:14 UTCGHSA enrichment
  32. 2026-08-07 07:18 UTCGHSA enrichment
  33. 2026-08-06 18:22 UTCEG score recompute
  34. 2026-08-06 18:22 UTCGHSA enrichment
  35. 2026-08-06 13:47 UTCEPSS rescore
  36. 2026-08-06 05:25 UTCGHSA enrichment
  37. 2026-08-05 16:29 UTCEG score recompute
  38. 2026-08-05 16:29 UTCGHSA enrichment
  39. 2026-08-05 16:12 UTCEG score recompute
  40. 2026-08-05 16:12 UTCGHSA enrichment
  41. 2026-08-05 13:27 UTCEG score recompute
  42. 2026-08-05 13:07 UTCEG score recompute
  43. 2026-08-05 13:07 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-71285?
CVE-2026-71285 is a high vulnerability published on August 5, 2026. 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…
When was CVE-2026-71285 disclosed?
CVE-2026-71285 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71285 actively exploited?
CVE-2026-71285 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 87.7% of all scored CVEs.
What is the CVSS score of CVE-2026-71285?
CVE-2026-71285 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-71285?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71285, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-71285

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