CVE-2026-61805
Frappe LMS: Quiz result manipulation and cross-user submission forgery
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| lms frappe |
< 2.54.0 (affected) | CNA: GitHub_M |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 5.3 medium |
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 | CNA: GitHub_M |
| 4.0 / 5.3 medium |
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/frappe/lms/security/advisories/GHSA-4566-2phx-68ghCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/frappe/lms/commit/876504f3900512f528b6e4a7bd3a15673eedd386CNA: GitHub_M · x_refsource_MISC
- https://github.com/frappe/lms/tree/v2.54.0CNA: GitHub_M · x_refsource_MISC
- https://github.com/frappe/lms/commit/876504f3900512f528b6e4a7bd3a15673eedd386[email protected]
- https://github.com/frappe/lms/security/advisories/GHSA-4566-2phx-68gh[email protected]
- https://github.com/frappe/lms/tree/v2.54.0[email protected]
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