CVE-2026-39405: frappe lms Path Traversal

Vulnerability summary

CVE-2026-39405 is a critical (CVSS 9.4) Path Traversal vulnerability in frappe lms. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 38.3% of scored vulnerabilities.

Timeline

1. 20-05-2026
   PublishedVulnerability first disclosed.
2. 21-05-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.