CVE-2026-6815

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2026-05-11. NVD baseline CVSS 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.9Exploit: Elevated riskExposed: 0

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

An arbitrary file write vulnerability exists in Casdoor's Local File System storage provider. Due to insufficient path sanitization, an authenticated attacker with administrative privileges can perform a Path Traversal attack to create or overwrite arbitrary files anywhere on the host filesystem, bypassing the application's intended storage sandbox.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity59% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

May 11, 2026

Last Modified

June 1, 2026

Advisory Details (2)

Auto-updated Jun 16, 2026
No patch confirmed yet. Sources: cert.
cert

VU#937808 - Casdoor contains Arbitrary File Write vulnerability

https://www.kb.cert.org/vuls/id/937808
cert

VU#937808 - Casdoor contains Arbitrary File Write vulnerability

https://kb.cert.org/vuls/id/937808

Vendor Advisories for CVE-2026-6815(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/casdoor/casdoor———

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 43× 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 115 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCdanilo-dellorco/CVE-2026-6815
    First seen Jun 4, 2026

    Proof of Concept (PoC) exploit for CVE-2026-6815: Authenticated Path Traversal & Arbitrary File Write in Casdoor (< 3.54.1) leading to RCE/DoS.

    Open source ↗
  • Exploit-DBEDB-52584
    First seen May 27, 2026

    Casdoor 3.54.1 - Arbitrary File Write via Path Traversal

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-6815?
CVE-2026-6815 is a medium vulnerability published on May 11, 2026. An arbitrary file write vulnerability exists in Casdoor's Local File System storage provider. Due to insufficient path sanitization, an authenticated attacker with administrative privileges can perform a Path Traversal attack to create or overwrite arbitrary files anywhere on the host filesystem,…
When was CVE-2026-6815 disclosed?
CVE-2026-6815 was first published in the National Vulnerability Database on May 11, 2026, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6815 actively exploited?
CVE-2026-6815 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 59.3% of all scored CVEs.
What is the CVSS score of CVE-2026-6815?
CVE-2026-6815 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-6815?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6815, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-6815

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