CVE-2026-40783

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-17. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.9Exploit: NoneExposed: 0

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

Contributor Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.37 versions.

CVSS v3
9.9
EG Score
9.9(high)
EPSS
41.5%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Jul 4, 2026
No patch confirmed yet.
generic

Remote Code Execution (RCE) in WordPress Blocksy Companion Pro Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/blocksy-companion-pro/vulnerability/wordpress-blocksy-companion-pro-plugin-2-1-37-remote-code-execution-rce-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-40783(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 80× in last 7d / 230× 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 230 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-40783?
CVE-2026-40783 is a critical vulnerability published on June 17, 2026. Contributor Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.37 versions.
When was CVE-2026-40783 disclosed?
CVE-2026-40783 was first published in the National Vulnerability Database on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40783 actively exploited?
CVE-2026-40783 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-40783?
CVE-2026-40783 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-40783?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40783, 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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