Frappe LMS enrollment bypass in paid courses via unrelated batch

{
  "id": "3d05215a28a351f45c4a39f0b7fb2d9a091bb18b155b8ad521204e284fd5145f",
  "url": "https://osv.dev/vulnerability/CVE-2026-39385",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Frappe LMS enrollment bypass in paid courses via unrelated batch",
    "summary": "Frappe LMS is an open source learning management system. In version 2.51.0 and earlier, a user could bypass payment validation for courses by using unrelated batch. This has been patched in 2.52.0 with enrollment now validating that the batch is linked to course.",
    "evidence": "osv:CVE-2026-39385",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-39385",
      "aliases": [
        "CVE-2026-39385",
        "GHSA-c4xh-2rcm-6mgc"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/frappe/lms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "cb9b54a9d4b928a0add7c874a6db6e7f79de171a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.52.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.51.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.51.0",
            "v2.50.1",
            "v2.50.0",
            "v2.49.0",
            "v2.48.0",
            "v2.47.0",
            "v2.46.0",
            "v2.45.2",
            "v2.45.1",
            "v2.45.0",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39385.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.534597753Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39385.json",
        "https://github.com/frappe/lms/security/advisories/GHSA-c4xh-2rcm-6mgc",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-39385"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-288"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39385.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-39385",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496421,
  "published_at": "2026-07-20T16:55:08.593+00:00"
}