CVE-2026-81780

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreHIGH confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-31. a secondary CVSS source baseline 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 10.0Exploit: None knownExposed: 0

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

Unauthenticated Arbitrary File Upload in Hash Form <= 1.4.2 versions.

CVSS v3
10.0
EG Score
10.0(high)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity100% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 1, 2026

Advisory Details (1)

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

Arbitrary File Upload in WordPress Hash Form Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/hash-form/vulnerability/wordpress-hash-form-plugin-1-4-2-arbitrary-file-upload-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-81780(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 49× in last 7d / 143× 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 143 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81780?
CVE-2026-81780 is a critical vulnerability published on August 31, 2026. Unauthenticated Arbitrary File Upload in Hash Form <= 1.4.2 versions.
When was CVE-2026-81780 disclosed?
CVE-2026-81780 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81780 actively exploited?
CVE-2026-81780 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 78.2% of all scored CVEs.
What is the CVSS score of CVE-2026-81780?
CVE-2026-81780 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2026-81780?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81780, 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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