CVE-2026-34606: Stored XSS in Frappe LMS

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-02 · updated 2026-07-24
Weakness: CWE-79

Description

Frappe Learning Management System (LMS) is a learning system that helps users structure their content. From version 2.27.0 to before version 2.48.0, Frappe LMS was vulnerable to stored XSS. This issue has been patched in version 2.48.0.

Affected products

frappe Learning: from 2.27.0 before 2.48.0 — fixed in 2.48.0

How to fix

Upgrade to a fixed version: frappe Learning 2.48.0. Check the vendor advisory for mitigations.

References

https://github.com/frappe/lms/commit/b8283860a7f029ea2fa0245131c398c079088921
https://github.com/frappe/lms/pull/2185
https://github.com/frappe/lms/releases/tag/v2.48.0
https://github.com/frappe/lms/security/advisories/GHSA-qf5w-r34q-c7j2

Get alerted when CVE-2026-34606 or the next vulnerability affects your stack