CVE-2026-85453

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-09-04. a secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

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

MOOS core-moos through 10.4.0 fails to escape database contents when rendering MOOSDB HTTP pages, allowing attackers to inject malicious scripts. Any MOOS publisher can set variable values containing script payloads that execute in the browser of operators viewing the web interface.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 14, 2026

Advisory Details (5)

Auto-updated Sep 3, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

MOOS core-moos through 10.4.0 MOOSDB HTTP Pages Stored Cross-Site Scripting | Advisories | VulnCheck

https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-moosdb-http-pages-stored-cross-site-scripting
generic

core-moos/Core/libMOOS/DB/HTTPConnection.cpp at ec9c77c68fcbdef8f5e4c60fe243acd223433f0c · themoos/core-moos · GitHub

https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/DB/HTTPConnection.cpp#L460
generic

GitHub - themoos/core-moos: A very light weight, easy to use middleware. You will need core-moos above all other components · GitHub

https://github.com/themoos/core-moos
github_commit

commit a3f26f099bb0 (themoos/core-moos)

Fix landed in themoos/core-moos commit a3f26f099bb0 — awaiting tagged release

https://github.com/themoos/core-moos/commit/a3f26f099bb08decb143f704d8b1ca16ae405b44
github_pr

Escape MOOS data before it reaches the built in web pages

Upstream fix in progress (PR #78 · themoos/core-moos, state=open)

https://github.com/themoos/core-moos/pull/78

Vendor Advisories for CVE-2026-85453(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 20× in last 7d / 62× 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. 2026-09-25 03:16 UTCEG score recompute
  2. 2026-09-25 03:16 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 02:18 UTCEG score recompute
  5. 2026-09-24 02:18 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 01:21 UTCEG score recompute
  8. 2026-09-23 01:21 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 00:23 UTCEG score recompute
  11. 2026-09-22 00:23 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-20 23:26 UTCEG score recompute
  14. 2026-09-20 23:26 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-19 22:28 UTCEG score recompute
  17. 2026-09-19 22:28 UTCGHSA enrichment
  18. 2026-09-18 21:29 UTCEG score recompute
  19. 2026-09-18 21:29 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-17 20:32 UTCEG score recompute
  22. 2026-09-17 20:32 UTCGHSA enrichment
  23. 2026-09-17 19:32 UTCEPSS rescore
  24. 2026-09-16 18:31 UTCEG score recompute
  25. 2026-09-16 18:31 UTCGHSA enrichment
Show 37 more
  1. 2026-09-16 14:09 UTCEPSS rescore
  2. 2026-09-16 05:15 UTCEPSS rescore
  3. 2026-09-15 15:30 UTCEG score recompute
  4. 2026-09-15 15:30 UTCGHSA enrichment
  5. 2026-09-15 03:12 UTCEPSS rescore
  6. 2026-09-15 03:12 UTCEPSS rescore
  7. 2026-09-14 14:32 UTCEG score recompute
  8. 2026-09-14 14:32 UTCGHSA enrichment
  9. 2026-09-14 14:00 UTCEG score recompute
  10. 2026-09-14 14:00 UTCGHSA enrichment
  11. 2026-09-14 03:16 UTCEG score recompute
  12. 2026-09-14 03:16 UTCGHSA enrichment
  13. 2026-09-13 02:19 UTCEG score recompute
  14. 2026-09-13 02:19 UTCGHSA enrichment
  15. 2026-09-12 01:21 UTCEG score recompute
  16. 2026-09-12 01:21 UTCGHSA enrichment
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-11 14:53 UTCEPSS rescore
  19. 2026-09-11 00:23 UTCEG score recompute
  20. 2026-09-11 00:23 UTCGHSA enrichment
  21. 2026-09-09 23:25 UTCEG score recompute
  22. 2026-09-09 23:25 UTCGHSA enrichment
  23. 2026-09-08 22:01 UTCEPSS rescore
  24. 2026-09-08 20:19 UTCGHSA enrichment
  25. 2026-09-08 03:22 UTCEG score recompute
  26. 2026-09-08 03:22 UTCGHSA enrichment
  27. 2026-09-07 02:24 UTCEG score recompute
  28. 2026-09-07 02:24 UTCGHSA enrichment
  29. 2026-09-06 13:48 UTCEPSS rescore
  30. 2026-09-06 01:23 UTCEG score recompute
  31. 2026-09-06 01:23 UTCGHSA enrichment
  32. 2026-09-05 15:31 UTCEPSS rescore
  33. 2026-09-05 00:25 UTCEG score recompute
  34. 2026-09-05 00:25 UTCGHSA enrichment
  35. 2026-09-03 23:27 UTCEG score recompute
  36. 2026-09-03 22:44 UTCEG score recompute
  37. 2026-09-03 22:43 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85453?
CVE-2026-85453 is a medium vulnerability published on September 3, 2026. MOOS core-moos through 10.4.0 fails to escape database contents when rendering MOOSDB HTTP pages, allowing attackers to inject malicious scripts. Any MOOS publisher can set variable values containing script payloads that execute in the browser of operators viewing the web interface.
When was CVE-2026-85453 disclosed?
CVE-2026-85453 was first published in the National Vulnerability Database on September 3, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85453 actively exploited?
CVE-2026-85453 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 75.6% of all scored CVEs.
What is the CVSS score of CVE-2026-85453?
CVE-2026-85453 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-85453?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85453, 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

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