Vulnary
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Critical· 9.4official fix available

CVE-2026-39405

A flaw in Frappe Learning Management System allows users with course editing rights to upload a SCORM ZIP package that can write files outside the intended directory. This can lead to unauthorized file creation or modification. The issue is fixed in version 2.50.1.

publishedMay 20, 2026
last modifiedJul 23, 2026
sourcesNVD
severity · cvss
9.4
critical · how bad it is
exploitation · epss
<1%
23th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Aug 24, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

Frappe Learning Management System (LMS) versions 2.50.0 and earlier, specifically users who have the course editing role.

02

Real-world impact

An attacker could place arbitrary files on the server, potentially overwriting critical files, injecting malicious code, or exposing sensitive data.

03

Why this severity

The CVSS score of 9.4 reflects the combination of high confidentiality, integrity, and availability impact, low attack complexity, and the ability for an attacker to act without authentication. The vulnerability allows local file write outside the intended directory, which is a severe risk.

04

What to do about it

official fix available
recommended steps
  1. 01Upgrade Frappe LMS to version 2.50.1 or later.
  2. 02Restart the LMS service after the upgrade.

NVD-referenced vendor advisory

05

Timeline

  1. May 20, 2026 · May 20, 2026
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Jul 23, 2026 · 12d ago
    Advisory updated
    The NVD record was last revised.
  3. Jul 25, 2026 · 10d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Attack requirementsNone
Privileges requiredLow
User interactionNone needed
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
CVE-2026-39405: A flaw in Frappe Learning Management System allows users with course e · Vulnary