CVE-2026-82923

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-04. 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 weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

The AI Website Builder WordPress plugin (GitHub build) 1.0.0 does not perform any authorisation or nonce check on its REST API routes, allowing unauthenticated attackers to install and activate plugins and themes, import content from a URL under their control, write a file of their choosing into the uploads directory, and delete site content and media. On a host that serves PHP from the uploads directory, that file write is remote code execution.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
56%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 23, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

AI Website Builder (GitHub build) 1.0.0 – Unauthenticated RCE via Unprotected REST Routes | CVE 2026-82923 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/663e7004-1cca-4c0f-8d54-7298d40fe179/

Vendor Advisories for CVE-2026-82923(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 58× in last 7d / 176× 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 176 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-82923?
CVE-2026-82923 is a critical vulnerability published on September 4, 2026. The AI Website Builder WordPress plugin (GitHub build) 1.0.0 does not perform any authorisation or nonce check on its REST API routes, allowing unauthenticated attackers to install and activate plugins and themes, import content from a URL under their control, write a file of their choosing into…
When was CVE-2026-82923 disclosed?
CVE-2026-82923 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82923 actively exploited?
CVE-2026-82923 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 44.4% of all scored CVEs.
What is the CVSS score of CVE-2026-82923?
CVE-2026-82923 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-82923?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82923, 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.

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