CVE-2026-84715

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

FeatherPanel versions before 1.3.7.10 fail to validate permissions in the SubuserController updateSubuser handler, allowing authenticated subusers to modify their own permission records. A subuser with minimal permissions can send a crafted request to grant themselves full server control, enabling unauthorized access to sensitive data, backups, and server configuration.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 24, 2026

Advisory Details (6)

Auto-updated Sep 2, 2026
Patch available. Sources: github_commit, github_release.
generic

FeatherPanel before 1.3.7.10 Privilege Escalation via Subuser Permission Update | Advisories | VulnCheck

https://www.vulncheck.com/advisories/featherpanel-before-1.3.7.10-privilege-escalation-via-subuser-permission-update
generic

GitHub - MythicalLTD/FeatherPanel: Reimagining the Hosting Industry · GitHub

https://github.com/MythicalLTD/FeatherPanel
generic

FeatherPanel/backend/app/Helpers/ServerGateway.php at 376b003aa9685b74153d239d2b3f64a752cdc0f0 · MythicalLTD/FeatherPanel · GitHub

https://github.com/MythicalLTD/FeatherPanel/blob/376b003aa9685b74153d239d2b3f64a752cdc0f0/backend/app/Helpers/ServerGateway.php
generic

FeatherPanel/backend/app/Controllers/User/Server/SubuserController.php at 376b003aa9685b74153d239d2b3f64a752cdc0f0 · MythicalLTD/FeatherPanel · GitHub

https://github.com/MythicalLTD/FeatherPanel/blob/376b003aa9685b74153d239d2b3f64a752cdc0f0/backend/app/Controllers/User/Server/SubuserController.php#L454
github_release Patch Available

v1.3.7.10

Patch available: MythicalLTD/FeatherPanel v1.3.7.10

https://github.com/MythicalLTD/FeatherPanel/releases/tag/v1.3.7.10
github_commit Patch Available

commit 06ef8dcac471 (MythicalLTD/FeatherPanel)

Patch available: MythicalLTD/FeatherPanel v1.3.7.10 (contains commit 06ef8dcac471)

https://github.com/MythicalLTD/FeatherPanel/commit/06ef8dcac471201748516ca743694159cb846a9d

Vendor Advisories for CVE-2026-84715(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 26× in last 7d / 88× 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.

  1. 2026-09-25 03:54 UTCGHSA enrichment
  2. 2026-09-24 14:56 UTCEG score recompute
  3. 2026-09-24 14:56 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 08:58 UTCGHSA enrichment
  6. 2026-09-23 20:00 UTCEG score recompute
  7. 2026-09-23 20:00 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 07:02 UTCGHSA enrichment
  10. 2026-09-22 18:04 UTCEG score recompute
  11. 2026-09-22 18:04 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 04:35 UTCEG score recompute
  14. 2026-09-22 04:35 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 15:36 UTCGHSA enrichment
  17. 2026-09-21 02:38 UTCEG score recompute
  18. 2026-09-21 02:38 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 13:39 UTCGHSA enrichment
  21. 2026-09-20 00:41 UTCEG score recompute
  22. 2026-09-20 00:41 UTCGHSA enrichment
  23. 2026-09-19 11:42 UTCGHSA enrichment
  24. 2026-09-18 22:36 UTCEG score recompute
  25. 2026-09-18 22:36 UTCGHSA enrichment
Show 63 more
  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 09:38 UTCGHSA enrichment
  3. 2026-09-17 20:39 UTCEG score recompute
  4. 2026-09-17 20:39 UTCGHSA enrichment
  5. 2026-09-17 19:32 UTCEPSS rescore
  6. 2026-09-17 03:40 UTCGHSA enrichment
  7. 2026-09-16 14:42 UTCEG score recompute
  8. 2026-09-16 14:42 UTCGHSA enrichment
  9. 2026-09-16 14:09 UTCEPSS rescore
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-16 01:44 UTCGHSA enrichment
  12. 2026-09-15 12:46 UTCEG score recompute
  13. 2026-09-15 12:46 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 23:48 UTCGHSA enrichment
  17. 2026-09-14 10:50 UTCGHSA enrichment
  18. 2026-09-13 21:52 UTCEG score recompute
  19. 2026-09-13 21:52 UTCGHSA enrichment
  20. 2026-09-13 08:53 UTCGHSA enrichment
  21. 2026-09-12 19:55 UTCEG score recompute
  22. 2026-09-12 19:55 UTCGHSA enrichment
  23. 2026-09-12 06:56 UTCGHSA enrichment
  24. 2026-09-11 17:57 UTCEG score recompute
  25. 2026-09-11 17:57 UTCGHSA enrichment
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 04:59 UTCGHSA enrichment
  29. 2026-09-10 16:01 UTCGHSA enrichment
  30. 2026-09-10 14:13 UTCEG score recompute
  31. 2026-09-10 14:13 UTCGHSA enrichment
  32. 2026-09-10 01:14 UTCGHSA enrichment
  33. 2026-09-09 12:16 UTCGHSA enrichment
  34. 2026-09-08 23:16 UTCEG score recompute
  35. 2026-09-08 23:16 UTCGHSA enrichment
  36. 2026-09-08 22:01 UTCEPSS rescore
  37. 2026-09-08 03:51 UTCEG score recompute
  38. 2026-09-08 03:51 UTCGHSA enrichment
  39. 2026-09-07 14:53 UTCGHSA enrichment
  40. 2026-09-07 00:26 UTCEG score recompute
  41. 2026-09-07 00:26 UTCGHSA enrichment
  42. 2026-09-06 13:48 UTCEPSS rescore
  43. 2026-09-06 11:25 UTCGHSA enrichment
  44. 2026-09-05 22:27 UTCEG score recompute
  45. 2026-09-05 22:27 UTCGHSA enrichment
  46. 2026-09-05 15:31 UTCEPSS rescore
  47. 2026-09-05 09:29 UTCGHSA enrichment
  48. 2026-09-04 20:30 UTCEG score recompute
  49. 2026-09-04 20:30 UTCGHSA enrichment
  50. 2026-09-04 07:26 UTCEG score recompute
  51. 2026-09-04 07:26 UTCGHSA enrichment
  52. 2026-09-04 05:07 UTCEPSS rescore
  53. 2026-09-03 18:25 UTCGHSA enrichment
  54. 2026-09-03 05:20 UTCEG score recompute
  55. 2026-09-03 05:19 UTCGHSA enrichment
  56. 2026-09-02 16:20 UTCEG score recompute
  57. 2026-09-02 16:20 UTCGHSA enrichment
  58. 2026-09-02 15:34 UTCEG score recompute
  59. 2026-09-02 15:34 UTCGHSA enrichment
  60. 2026-09-02 14:12 UTCEPSS rescore
  61. 2026-09-02 02:31 UTCEG score recompute
  62. 2026-09-02 01:37 UTCEG score recompute
  63. 2026-09-02 01:35 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84715?
CVE-2026-84715 is a high vulnerability published on September 2, 2026. FeatherPanel versions before 1.3.7.10 fail to validate permissions in the SubuserController updateSubuser handler, allowing authenticated subusers to modify their own permission records. A subuser with minimal permissions can send a crafted request to grant themselves full server control, enabling…
When was CVE-2026-84715 disclosed?
CVE-2026-84715 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84715 actively exploited?
CVE-2026-84715 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.5% of all scored CVEs.
What is the CVSS score of CVE-2026-84715?
CVE-2026-84715 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-84715?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84715, 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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