CVE-2026-56027

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-26. 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
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.9Exploit: None knownExposed: 0

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

Customer Arbitrary File Upload in Booster for WooCommerce <= 8.0.1 versions.

CVSS v3
9.9
EG Score
9.9(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
Severity99% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jul 25, 2026
No patch confirmed yet.
generic

Arbitrary File Upload in WordPress Booster for WooCommerce Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/woocommerce-jetpack/vulnerability/wordpress-booster-for-woocommerce-plugin-8-0-1-arbitrary-file-upload-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-56027(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 24× in last 7d / 160× 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 179 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56027?
CVE-2026-56027 is a critical vulnerability published on June 26, 2026. Customer Arbitrary File Upload in Booster for WooCommerce <= 8.0.1 versions.
When was CVE-2026-56027 disclosed?
CVE-2026-56027 was first published in the National Vulnerability Database on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56027 actively exploited?
CVE-2026-56027 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 75.7% of all scored CVEs.
What is the CVSS score of CVE-2026-56027?
CVE-2026-56027 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-56027?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56027, 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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