Vulnerability · Published Oct 30, 2026 · Assigned by GitHub_M

CVE-2026-61803Frappe LMS: Client-controlled price allows paid-course / certificate purchase for an arbitrary amount

Medium 5.3

In plain English

A medium-severity unsafe deserialization in lms from frappe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium

Exploit odds (30 days)0.2%top 86.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Prior to version 2.52.1, the `course/certificate checkout` flow accepts client-controlled pricing, allowing an authenticated user to complete a paid-course or certificate purchase for an amount other than the actual price. This is a business-logic integrity issue; it does not expose other users' data or grant elevated privileges. This issue is fixed in version 2.52.1.

Affected products (as reported)

Vendor	Product	Versions
frappe	lms	< 2.52.1

Weakness: CWE-502 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

References

https://github.com/frappe/lms/security/advisories/GHSA-g5jj-q8m7-359c x_refsource_CONFIRM
https://github.com/frappe/lms/commit/1d04f4fd917b62f5dd4442a541280fc40a4178b4 x_refsource_MISC
https://github.com/frappe/lms/tree/v2.52.1 x_refsource_MISC