CVE-2026-66677

HIGHPre-NVD 7.67.6—
EchelonGraph scoreMEDIUM confidence

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. a secondary CVSS source baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.6Exploit: None knownExposed: 0

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

Subscriber Broken Authentication in Leyka <= 3.32.3 versions.

CVSS v3
7.6
EG Score
7.6(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity76% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

August 20, 2026

Last Modified

August 20, 2026

Advisory Details (1)

Auto-updated Aug 20, 2026
Patch available.
generic Patch Available

Broken Authentication in WordPress Leyka Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/leyka/vulnerability/wordpress-leyka-plugin-3-32-3-broken-authentication-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-66677(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 25× in last 7d / 113× 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 122 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-66677?
CVE-2026-66677 is a high vulnerability published on August 20, 2026. Subscriber Broken Authentication in Leyka <= 3.32.3 versions.
When was CVE-2026-66677 disclosed?
CVE-2026-66677 was first published in the National Vulnerability Database on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66677 actively exploited?
CVE-2026-66677 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 68.9% of all scored CVEs.
What is the CVSS score of CVE-2026-66677?
CVE-2026-66677 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-66677?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66677, 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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