CVE-2026-78274

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-27. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

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

Editor Arbitrary File Upload in Fluent Boards Pro <= 2.0.11 versions.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Sep 15, 2026
No patch confirmed yet.
generic

Arbitrary File Upload in WordPress Fluent Boards Pro Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/fluent-boards-pro/vulnerability/wordpress-fluent-boards-pro-plugin-2-0-11-arbitrary-file-upload-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-78274(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 56× in last 7d / 208× 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 208 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78274?
CVE-2026-78274 is a critical vulnerability published on August 27, 2026. Editor Arbitrary File Upload in Fluent Boards Pro <= 2.0.11 versions.
When was CVE-2026-78274 disclosed?
CVE-2026-78274 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78274 actively exploited?
CVE-2026-78274 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 60.5% of all scored CVEs.
What is the CVSS score of CVE-2026-78274?
CVE-2026-78274 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-78274?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78274, 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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