CVE-2026-70593

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (33rd percentile of EPSS-scored CVEs). 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, secondary
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Ghost is a Node.js content management system. From 0.10.0 until 6.54.1, a vulnerability in custom themes allowed a staff user to write files outside of the uploads directory. This could be used to alter the behavior of the installation through custom theme upload path traversal in LocalStorageBase and theme storage name handling. This issue is fixed in version 6.54.1.

CVSS v3
6.6
EG Score
6.6MEDIUMmedium confidence
EG Risk
30
EG Risk 30/100CISA SSVC

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
Severity66% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
33rd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 4, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Aug 4, 2026
Patch available. Sources: github_commit, github_release, github.
github_release Patch Available

v6.54.1

Patch available: TryGhost/Ghost v6.54.1

https://github.com/TryGhost/Ghost/releases/tag/v6.54.1
github_commit Patch Available

commit fbaa92327e52 (TryGhost/Ghost)

Patch available: TryGhost/Ghost v6.54.1 (contains commit fbaa92327e52)

https://github.com/TryGhost/Ghost/commit/fbaa92327e52607036a1e42204c9eadcc751d82c
github Patch Available

Theme Upload Path Traversal · Advisory · TryGhost/Ghost · GitHub

https://github.com/TryGhost/Ghost/security/advisories/GHSA-cjc9-q5gf-327p

Vendor Advisories for CVE-2026-70593(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)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
ghost—
  • 0.10.0 up to 6.54.1: fixed in 6.54.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 44× 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 102 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-70593?
CVE-2026-70593 is a medium vulnerability published on August 4, 2026. Ghost is a Node.js content management system. From 0.10.0 until 6.54.1, a vulnerability in custom themes allowed a staff user to write files outside of the uploads directory. This could be used to alter the behavior of the installation through custom theme upload path traversal in LocalStorageBase…
When was CVE-2026-70593 disclosed?
CVE-2026-70593 was first published on August 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70593 actively exploited?
CVE-2026-70593 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70593?
CVE-2026-70593 has a CVSS base score of 6.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-70593?
A fix for CVE-2026-70593 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-70593 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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