CVE-2026-39405

CRITICALNVD 9.49.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This critical-severity CVE scores 9.4 under NVD CVSS v3. EPSS exploit probability: 0.5% (37th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
9.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Frappe Learning Management System (LMS) is a learning system that helps users structure their content. In versions 2.50.0 and below, a user with course editing role could upload a SCORM ZIP package to write files outside the intended directory. This issue has been resolved in version 2.50.1.

CVSS v3
9.4
EG Score
9.4CRITICALmedium confidence
EG Risk
42
EG Risk 42/100

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 (value × EchelonGraph’s weight)
Severity94% × 45%
The EG Score, 9.4 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
37th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 20, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Oct 2, 2026
Patch available. Sources: github_release, github.
GitHub advisoryMentions a patch (unverified)

Path transversal in SCORM · Advisory · frappe/lms · GitHub

https://github.com/frappe/lms/security/advisories/GHSA-mxh7-g3r7-g96h
GitHub release Patch Available

v2.50.1

Patch available: frappe/lms v2.50.1

https://github.com/frappe/lms/releases/tag/v2.50.1

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 30× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 96 of 187 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 91 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 02:14 UTCEG score recompute
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  3. 2026-10-12 22:33 UTCEG score recompute
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  5. 2026-10-12 16:10 UTCEG score recompute
  6. 2026-10-11 19:52 UTCEG score recompute
  7. 2026-10-11 17:06 UTCEG score recompute
  8. 2026-10-11 14:32 UTCEG score recompute
  9. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  12. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  14. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  16. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  17. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  18. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  20. 2026-09-30 10:47 UTCOSV refresh
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  22. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  23. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  24. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  25. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
Show 71 more
  1. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  2. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  3. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  4. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  5. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  6. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  7. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  8. 2026-09-11 17:40 UTCOSV refresh
  9. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  10. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  11. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  13. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  14. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  15. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  16. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  17. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  18. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  19. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  20. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  21. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  22. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  23. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  24. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  25. 2026-08-23 16:52 UTCEG score recompute
  26. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  27. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  28. 2026-08-21 22:53 UTCEG score recompute
  29. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  30. 2026-08-20 18:54 UTCEG score recompute
  31. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  32. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  33. 2026-08-17 14:40 UTCEG score recompute
  34. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  35. 2026-08-16 16:52 UTCEG score recompute
  36. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  37. 2026-08-16 03:28 UTCEG score recompute
  38. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  39. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  40. 2026-08-14 02:00 UTCEG score recompute
  41. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  42. 2026-08-12 14:37 UTCEG score recompute
  43. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  44. 2026-08-11 13:50 UTCEG score recompute
  45. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  46. 2026-08-11 00:33 UTCEG score recompute
  47. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  48. 2026-08-09 14:46 UTCEG score recompute
  49. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  50. 2026-08-09 01:31 UTCEG score recompute
  51. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  52. 2026-08-07 19:25 UTCEG score recompute
  53. 2026-08-06 14:59 UTCEG score recompute
  54. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  55. 2026-08-05 21:15 UTCEG score recompute
  56. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  57. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  58. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  59. 2026-08-03 16:53 UTCEG score recompute
  60. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  61. 2026-08-02 02:36 UTCEG score recompute
  62. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  63. 2026-08-01 17:39 UTCEG score recompute
  64. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  65. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  66. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  67. 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  68. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  69. 2026-07-26 08:13 UTCEG score recompute
  70. 2026-07-25 14:18 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  71. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.3% · 22nd percentile

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Frequently asked(5)

What is CVE-2026-39405?
CVE-2026-39405 is a critical-severity vulnerability; its CVE record was published on May 20, 2026. Frappe Learning Management System (LMS) is a learning system that helps users structure their content. In versions 2.50.0 and below, a user with course editing role could upload a SCORM ZIP package to write files outside the intended directory. This issue has been resolved in version 2.50.1.
When was the CVE record for CVE-2026-39405 published?
The CVE record for CVE-2026-39405 was published on May 20, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 23, 2026; the record at its source may have been updated since.
Is CVE-2026-39405 actively exploited?
CVE-2026-39405 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-39405?
CVE-2026-39405 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-39405?
A fix for CVE-2026-39405 is available: update to the fixed version the vendor names in its advisory.

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