CVE-2026-66691

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-13. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Unauthenticated Broken Access Control in Nokri <= 1.6.6 versions.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 14, 2026

Advisory Details (1)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

Broken Access Control in WordPress Nokri Theme - Patchstack

https://patchstack.com/database/wordpress/theme/nokri/vulnerability/wordpress-nokri-theme-1-6-6-broken-access-control-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-66691(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 48× in last 7d / 214× 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 277 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-66691?
CVE-2026-66691 is a critical vulnerability published on August 13, 2026. Unauthenticated Broken Access Control in Nokri <= 1.6.6 versions.
When was CVE-2026-66691 disclosed?
CVE-2026-66691 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66691 actively exploited?
CVE-2026-66691 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 74.6% of all scored CVEs.
What is the CVSS score of CVE-2026-66691?
CVE-2026-66691 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-66691?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66691, 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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