CVE-2026-56058

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.

Subscriber Arbitrary File Upload in Quform <= 2.23.0 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
39%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Aug 23, 2026
No patch confirmed yet.
generic

Arbitrary File Upload in WordPress Quform Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/quform/vulnerability/wordpress-quform-plugin-2-23-0-arbitrary-file-upload-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-56058(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 22× in last 7d / 178× 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 376 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56058?
CVE-2026-56058 is a critical vulnerability published on June 26, 2026. Subscriber Arbitrary File Upload in Quform <= 2.23.0 versions.
When was CVE-2026-56058 disclosed?
CVE-2026-56058 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-2026-56058 actively exploited?
CVE-2026-56058 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 60.7% of all scored CVEs.
What is the CVSS score of CVE-2026-56058?
CVE-2026-56058 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-56058?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56058, 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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