Description
Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Prior to version 2.54.0, quiz submission records are not adequately authorized on the server. Through a `REST` bypass, an authenticated student can record a passing or perfect quiz result without their answers being verified, unlocking course completion and certificates. The student can also create a submission attributed to another user, exhausting that user's allowed attempts and blocking legitimate submissions. These integrity and availability issues are scoped to quiz results; they do not expose other users' data or grant elevated roles. This issue is fixed in version 2.54.0.
Published: 2026-10-30
Score: 5.3 Medium
EPSS: n/a
KEV: No
Impact: Integrity and Availability of Quiz Results
Action: Patch Now
AI Analysis

Impact

The vulnerability allows an authenticated user to submit quiz results that bypass server-side verification through a REST API endpoint lacking proper authorization. By sending crafted requests, a student can mark quizzes as passed or perfect without providing correct answers, thereby unlocking course completion and certificates.

Affected Systems

The affected product is Frappe Learning Management System (LMS) provided by frappe:lms. Versions prior to 2.54.0 are vulnerable; the issue is fixed in 2.54.0.

Risk and Exploitability

The CVSS base score of 5.3 indicates moderate severity, and the vulnerability is not listed in CISA’s KEV catalog. EPSS data is not available, but the attack requires authenticated access to the LMS and leverages a REST API bypass. Impact is limited to the integrity and availability of quiz results, which can undermine grading and certification processes.

Generated by OpenCVE AI on October 30, 2026 at 19:07 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Frappe LMS to version 2.54.0 or later, where server‑side authorization for quiz submissions has been restored.
  • After patching, audit any custom modules or extensions that interact with quiz submissions to ensure they enforce proper authorization checks, addressing the missing authorization weakness (CWE-862).
  • Regularly review completion logs for anomalous patterns, such as an unusually high number of perfect quiz results from a single account, and throttle or block such activity if detected.

Generated by OpenCVE AI on October 30, 2026 at 19:07 UTC.

Tracking

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Advisories

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History

Fri, 30 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Frappe
Frappe lms
Vendors & Products Frappe
Frappe lms

Fri, 30 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
Description Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Prior to version 2.54.0, quiz submission records are not adequately authorized on the server. Through a `REST` bypass, an authenticated student can record a passing or perfect quiz result without their answers being verified, unlocking course completion and certificates. The student can also create a submission attributed to another user, exhausting that user's allowed attempts and blocking legitimate submissions. These integrity and availability issues are scoped to quiz results; they do not expose other users' data or grant elevated roles. This issue is fixed in version 2.54.0.
Title Frappe LMS: Quiz result manipulation and cross-user submission forgery
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}

Subscriptions

Frappe Lms
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-30T17:01:42.988Z

Reserved: 2026-07-10T20:06:05.618Z

Link: CVE-2026-61805

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-30T17:17:27.220

Modified: 2026-10-30T19:39:14.897

Link: CVE-2026-61805

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T19:15:16Z

Weaknesses