CVE-2026-55730

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 71% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: None knownExposed: 0

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

Reflected Cross-Site Scripting (CWE-79) in LWEB802 in Loytec LWEB-802 before 5.0.8 on all platforms allows an unauthenticated remote attacker to execute arbitrary JavaScript in a victim's browser and perform actions with the victim's privileges via a crafted link containing a malicious project or mspParams parameter.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
54(Track)
EG Risk 54/100SSVC: 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
Severity87% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

July 24, 2026

Last Modified

July 27, 2026

Advisory Details (1)

Auto-updated Jul 24, 2026
No patch confirmed yet.
generic

DIBT-CVE 20260601-0002 Reflected Cross-Site Scripting (XSS) (HIGH)

https://www.loytec.com/support/product-security/advisories/8527-dibt-cve-20260601-0002-reflected-cross-site-scripting-xss-high

Vendor Advisories for CVE-2026-55730(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 87× 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.

Showing the most recent 100 of 173 total refreshes for this CVE.

  1. 2026-09-15 09:40 UTCEG score recompute
  2. 2026-09-15 09:40 UTCGHSA enrichment
  3. 2026-09-15 03:11 UTCEPSS rescore
  4. 2026-09-14 11:08 UTCGHSA enrichment
  5. 2026-09-13 22:19 UTCEG score recompute
  6. 2026-09-13 22:19 UTCGHSA enrichment
  7. 2026-09-13 16:47 UTCEPSS rescore
  8. 2026-09-13 07:11 UTCGHSA enrichment
  9. 2026-09-12 18:22 UTCEG score recompute
  10. 2026-09-12 18:22 UTCGHSA enrichment
  11. 2026-09-12 05:28 UTCGHSA enrichment
  12. 2026-09-11 16:39 UTCEG score recompute
  13. 2026-09-11 16:39 UTCGHSA enrichment
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 03:41 UTCGHSA enrichment
  16. 2026-09-10 14:52 UTCEG score recompute
  17. 2026-09-10 14:52 UTCGHSA enrichment
  18. 2026-09-10 09:35 UTCEPSS rescore
  19. 2026-09-09 08:51 UTCEG score recompute
  20. 2026-09-09 08:51 UTCGHSA enrichment
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-07 21:26 UTCEG score recompute
  23. 2026-09-07 21:26 UTCGHSA enrichment
  24. 2026-09-07 16:01 UTCEPSS rescore
  25. 2026-09-06 13:47 UTCEPSS rescore
Show 75 more
  1. 2026-09-06 08:33 UTCGHSA enrichment
  2. 2026-09-05 19:44 UTCEG score recompute
  3. 2026-09-05 19:44 UTCGHSA enrichment
  4. 2026-09-05 06:55 UTCEG score recompute
  5. 2026-09-05 06:55 UTCGHSA enrichment
  6. 2026-09-04 12:55 UTCEG score recompute
  7. 2026-09-04 12:55 UTCGHSA enrichment
  8. 2026-09-04 05:07 UTCEPSS rescore
  9. 2026-09-02 14:12 UTCEPSS rescore
  10. 2026-09-01 23:18 UTCEG score recompute
  11. 2026-09-01 23:18 UTCGHSA enrichment
  12. 2026-09-01 13:54 UTCEPSS rescore
  13. 2026-09-01 04:40 UTCEPSS rescore
  14. 2026-08-31 01:59 UTCEG score recompute
  15. 2026-08-31 01:59 UTCGHSA enrichment
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 13:10 UTCEG score recompute
  18. 2026-08-30 13:10 UTCGHSA enrichment
  19. 2026-08-30 01:22 UTCEPSS rescore
  20. 2026-08-30 00:20 UTCEG score recompute
  21. 2026-08-30 00:20 UTCGHSA enrichment
  22. 2026-08-28 21:41 UTCEPSS rescore
  23. 2026-08-27 23:08 UTCEG score recompute
  24. 2026-08-27 23:08 UTCGHSA enrichment
  25. 2026-08-27 14:25 UTCEPSS rescore
  26. 2026-08-27 10:19 UTCGHSA enrichment
  27. 2026-08-26 21:29 UTCEG score recompute
  28. 2026-08-26 21:29 UTCGHSA enrichment
  29. 2026-08-26 14:46 UTCEPSS rescore
  30. 2026-08-26 08:40 UTCGHSA enrichment
  31. 2026-08-25 19:45 UTCEG score recompute
  32. 2026-08-25 19:45 UTCGHSA enrichment
  33. 2026-08-25 13:49 UTCEPSS rescore
  34. 2026-08-25 06:56 UTCGHSA enrichment
  35. 2026-08-24 18:06 UTCEG score recompute
  36. 2026-08-24 18:06 UTCGHSA enrichment
  37. 2026-08-24 03:34 UTCGHSA enrichment
  38. 2026-08-23 14:45 UTCGHSA enrichment
  39. 2026-08-23 01:55 UTCEG score recompute
  40. 2026-08-23 01:55 UTCGHSA enrichment
  41. 2026-08-23 00:19 UTCEPSS rescore
  42. 2026-08-22 13:06 UTCGHSA enrichment
  43. 2026-08-22 00:17 UTCEG score recompute
  44. 2026-08-22 00:17 UTCGHSA enrichment
  45. 2026-08-21 23:49 UTCEPSS rescore
  46. 2026-08-21 11:29 UTCEG score recompute
  47. 2026-08-21 11:29 UTCGHSA enrichment
  48. 2026-08-20 22:55 UTCEPSS rescore
  49. 2026-08-20 22:11 UTCGHSA enrichment
  50. 2026-08-20 09:21 UTCGHSA enrichment
  51. 2026-08-19 20:32 UTCEG score recompute
  52. 2026-08-19 20:32 UTCGHSA enrichment
  53. 2026-08-19 17:04 UTCEPSS rescore
  54. 2026-08-19 07:43 UTCGHSA enrichment
  55. 2026-08-18 18:54 UTCEG score recompute
  56. 2026-08-18 18:54 UTCGHSA enrichment
  57. 2026-08-18 13:48 UTCEPSS rescore
  58. 2026-08-18 05:50 UTCGHSA enrichment
  59. 2026-08-17 17:01 UTCEG score recompute
  60. 2026-08-17 17:01 UTCGHSA enrichment
  61. 2026-08-17 13:47 UTCEPSS rescore
  62. 2026-08-17 04:12 UTCGHSA enrichment
  63. 2026-08-16 15:23 UTCEG score recompute
  64. 2026-08-16 15:23 UTCGHSA enrichment
  65. 2026-08-16 14:56 UTCEPSS rescore
  66. 2026-08-16 02:34 UTCEG score recompute
  67. 2026-08-16 02:34 UTCGHSA enrichment
  68. 2026-08-16 02:14 UTCEPSS rescore
  69. 2026-08-15 13:45 UTCEG score recompute
  70. 2026-08-15 13:45 UTCGHSA enrichment
  71. 2026-08-15 01:30 UTCEPSS rescore
  72. 2026-08-15 00:56 UTCGHSA enrichment
  73. 2026-08-14 12:07 UTCGHSA enrichment
  74. 2026-08-13 23:18 UTCEG score recompute
  75. 2026-08-13 23:18 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-55730?
CVE-2026-55730 is a high vulnerability published on July 24, 2026. Reflected Cross-Site Scripting (CWE-79) in LWEB802 in Loytec LWEB-802 before 5.0.8 on all platforms allows an unauthenticated remote attacker to execute arbitrary JavaScript in a victim's browser and perform actions with the victim's privileges via a crafted link containing a malicious project or…
When was CVE-2026-55730 disclosed?
CVE-2026-55730 was first published in the National Vulnerability Database on July 24, 2026, with the most recent update on July 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55730 actively exploited?
CVE-2026-55730 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 70.9% of all scored CVEs.
What is the CVSS score of CVE-2026-55730?
CVE-2026-55730 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-55730?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55730, 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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