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
41%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Sep 20, 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 9× in last 7d / 55× 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 408 total refreshes for this CVE.

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

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 59.5% 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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