CVE-2023-42819

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 1.9%, top 23% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

JumpServer is an open source bastion host. Logged-in users can access and modify the contents of any file on the system. A user can use the 'Job-Template' menu and create a playbook named 'test'. Get the playbook id from the detail page, like 'e0adabef-c38f-492d-bd92-832bacc3df5f'. An attacker can exploit the directory traversal flaw using the provided URL to access and retrieve the contents of the file. https://jumpserver-ip/api/v1/ops/playbook/e0adabef-c38f-492d-bd92-832bacc3df5f/file/?key=../../../../../../../etc/passwd a similar method to modify the file content is also present. This issue has been addressed in version 3.6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
2%
EPSS %ILE
77%
KEV
Not listed

Published

September 27, 2023

Last Modified

June 17, 2026

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 45× 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 112 total refreshes for this CVE.

  1. 2026-07-30 16:26 UTCEPSS rescore
  2. 2026-07-30 16:26 UTCEPSS rescore
  3. 2026-07-30 01:28 UTCEPSS rescore
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  7. 2026-07-26 14:52 UTCEPSS rescore
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  9. 2026-07-25 14:16 UTCEPSS rescore
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  11. 2026-07-23 14:16 UTCEPSS rescore
  12. 2026-07-23 14:16 UTCEPSS rescore
  13. 2026-07-23 02:26 UTCEG score recompute
  14. 2026-07-22 23:13 UTCEG score recompute▼ 0.10
  15. 2026-07-22 14:06 UTCEPSS rescore
  16. 2026-07-21 15:23 UTCEPSS rescore
  17. 2026-07-21 15:23 UTCEPSS rescore
  18. 2026-07-20 17:06 UTCEPSS rescore
  19. 2026-07-19 14:29 UTCEPSS rescore
  20. 2026-07-19 02:27 UTCEPSS rescore
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  25. 2026-07-15 16:56 UTCEPSS rescore
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  1. 2026-07-15 16:56 UTCEPSS rescore
  2. 2026-07-15 08:49 UTCOSV refresh
  3. 2026-07-15 01:58 UTCEPSS rescore
  4. 2026-07-13 22:28 UTCEPSS rescore
  5. 2026-07-13 22:28 UTCEPSS rescore
  6. 2026-07-13 06:11 UTCEPSS rescore
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  8. 2026-07-12 05:45 UTCEPSS rescore
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  10. 2026-07-11 08:26 UTCEPSS rescore
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  12. 2026-07-09 19:08 UTCEPSS rescore
  13. 2026-07-08 15:13 UTCEPSS rescore
  14. 2026-07-07 13:44 UTCEPSS rescore
  15. 2026-07-06 16:26 UTCEPSS rescore
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  17. 2026-07-06 02:22 UTCEPSS rescore
  18. 2026-07-05 02:29 UTCEPSS rescore
  19. 2026-07-04 06:29 UTCEPSS rescore
  20. 2026-07-01 15:05 UTCEPSS rescore
  21. 2026-06-30 23:21 UTCEPSS rescore
  22. 2026-06-30 23:21 UTCEPSS rescore
  23. 2026-06-29 14:05 UTCEPSS rescore
  24. 2026-06-28 14:06 UTCEPSS rescore
  25. 2026-06-28 14:06 UTCEPSS rescore
  26. 2026-06-28 04:55 UTCEPSS rescore
  27. 2026-06-28 04:55 UTCEPSS rescore
  28. 2026-06-27 09:34 UTCOSV refresh
  29. 2026-06-27 03:07 UTCEPSS rescore
  30. 2026-06-27 03:07 UTCEPSS rescore
  31. 2026-06-25 13:48 UTCEPSS rescore
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  33. 2026-06-24 14:04 UTCEPSS rescore
  34. 2026-06-24 14:04 UTCEPSS rescore
  35. 2026-06-24 06:23 UTCNVD updateCVSS v3 → 8.8
  36. 2026-06-23 21:31 UTCEPSS rescore
  37. 2026-06-23 21:31 UTCEPSS rescore
  38. 2026-06-22 14:24 UTCEPSS rescore
  39. 2026-06-22 14:24 UTCEPSS rescore
  40. 2026-06-21 14:55 UTCEPSS rescore
  41. 2026-06-21 14:55 UTCEPSS rescore
  42. 2026-06-21 01:58 UTCEPSS rescore
  43. 2026-06-21 01:58 UTCEPSS rescore
  44. 2026-06-19 19:24 UTCEPSS rescore
  45. 2026-06-19 19:24 UTCEPSS rescore
  46. 2026-06-18 17:51 UTCEPSS rescore
  47. 2026-06-17 17:51 UTCEPSS rescore
  48. 2026-06-17 17:51 UTCEPSS rescore
  49. 2026-06-16 17:51 UTCEPSS rescore
  50. 2026-06-16 17:51 UTCEPSS rescore
  51. 2026-06-15 17:47 UTCEPSS rescore
  52. 2026-06-15 17:47 UTCEPSS rescore
  53. 2026-06-14 23:16 UTCEPSS rescore
  54. 2026-06-13 22:59 UTCEPSS rescore
  55. 2026-06-13 22:59 UTCEPSS rescore
  56. 2026-06-12 23:10 UTCEPSS rescore
  57. 2026-06-12 23:10 UTCEPSS rescore
  58. 2026-06-11 13:59 UTCEPSS rescore
  59. 2026-06-11 13:59 UTCEPSS rescore
  60. 2026-06-10 22:17 UTCEPSS rescore
  61. 2026-06-10 13:21 UTCEPSS rescore
  62. 2026-06-10 13:21 UTCEPSS rescore
  63. 2026-06-09 19:47 UTCOSV refresh
  64. 2026-06-07 15:23 UTCEPSS rescore
  65. 2026-06-07 15:23 UTCEPSS rescore
  66. 2026-06-06 13:46 UTCEPSS rescore
  67. 2026-06-06 13:46 UTCEPSS rescore
  68. 2026-06-05 22:46 UTCEPSS rescore
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  70. 2026-06-05 06:09 UTCEPSS rescore
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  73. 2026-06-04 13:11 UTCEPSS rescore
  74. 2026-06-04 13:11 UTCEPSS rescore
  75. 2026-06-02 20:12 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • GitHub PoCC1ph3rX13/CVE-2023-42819
    First seen Oct 12, 2023

    CVE-2023-42819

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-42819?
CVE-2023-42819 is a high vulnerability published on September 27, 2023. JumpServer is an open source bastion host. Logged-in users can access and modify the contents of any file on the system. A user can use the 'Job-Template' menu and create a playbook named 'test'. Get the playbook id from the detail page, like 'e0adabef-c38f-492d-bd92-832bacc3df5f'. An attacker can…
When was CVE-2023-42819 disclosed?
CVE-2023-42819 was first published in the National Vulnerability Database on September 27, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-42819 actively exploited?
CVE-2023-42819 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 22.9% of all scored CVEs.
What is the CVSS score of CVE-2023-42819?
CVE-2023-42819 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-42819?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-42819, 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.

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