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OpenMage LTS imports cross-user wishlist item via shared wishlist code, leading to private option disclosure and file-disclosure variant

Type: advisorySources: OSV

Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to version 20.17.0, the shared wishlist add-to-cart endpoint authorizes access with a public `sharing_code`, but loads the acted-on wishlist item by a separate global `wishlist_item_id` and never verifies that the item belongs to the shared wishlist referenced by that code. This lets an attacker use a valid shared wishlist code for wishlist A and a wishlist item ID belonging to victim wishlist B to import victim item B into the attacker's cart through the shared wishlist flow for wishlist A. Because the victim item's stored `buyRequest` is reused during cart import, the victim's private custom-option data is copied into the attacker's quote. If the product uses a file custom option, this can be elevated to cross-user file disclosure because the imported file metadata is preserved and the download endpoint is not ownership-bound. Version 20.17.0 patches the issue.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-40098
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 23:03 UTC · Revision 1

Source evidence

OpenMage LTS imports cross-user wishlist item via shared wishlist code, leading to private option disclosure and file-disclosure variant

core-osv · Original source

Published 20 Apr 2026, 16:19 UTC

Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to version 20.17.0, the shared wishlist add-to-cart endpoint authorizes access with a public `sharing_code`, but loads the acted-on wishlist item by a separate global `wishlist_item_id` and never verifies that the item belongs to the shared wishlist referenced by that code. This lets an attacker use a valid shared wishlist code for wishlist A and a wishlist item ID belonging to victim wishlist B to import victim item B into the attacker's cart through the shared wishlist flow for wishlist A. Because the victim item's stored `buyRequest` is reused during cart import, the victim's private custom-option data is copied into the attacker's quote. If the product uses a file custom option, this can be elevated to cross-user file disclosure because the imported file metadata is preserved and the download endpoint is not ownership-bound. Version 20.17.0 patches the issue.

osv:CVE-2026-40098
Complete source record
{
  "id": "42358e8ad72d86e1f228910ffec10b59e457944b78204ddcc6b1f8721770e09f",
  "url": "https://osv.dev/vulnerability/CVE-2026-40098",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "OpenMage LTS imports cross-user wishlist item via shared wishlist code, leading to private option disclosure and file-disclosure variant",
    "summary": "Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to version 20.17.0, the shared wishlist add-to-cart endpoint authorizes access with a public `sharing_code`, but loads the acted-on wishlist item by a separate global `wishlist_item_id` and never verifies that the item belongs to the shared wishlist referenced by that code. This lets an attacker use a valid shared wishlist code for wishlist A and a wishlist item ID belonging to victim wishlist B to import victim item B into the attacker's cart through the shared wishlist flow for wishlist A. Because the victim item's stored `buyRequest` is reused during cart import, the victim's private custom-option data is copied into the attacker's quote. If the product uses a file custom option, this can be elevated to cross-user file disclosure because the imported file metadata is preserved and the download endpoint is not ownership-bound. Version 20.17.0 patches the issue.",
    "evidence": "osv:CVE-2026-40098",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-40098",
      "aliases": [
        "CVE-2026-40098",
        "GHSA-665x-ppc4-685w"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openmage/magento-lts",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f4dd542b878613b9f40f39e9d7e862dec085defd"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "20.17.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:openmage:magento:*:*:*:*:lts:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "20.17.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v20.16.0",
            "v20.15.0",
            "v20.14.0",
            "v20.13.0",
            "v20.12.2",
            "v20.12.1",
            "v20.12.0",
            "v20.11.0",
            "v20.10.1",
            "v21.0.0-beta2",
            "v20.10.0",
            "v20.9.0",
            "v20.8.0",
            "v20.7.0",
            "v20.6.0",
            "v20.5.0",
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            "v20.2.0",
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            "v20.1.0-rc5",
            "v20.1.0-rc4",
            "v20.1.0-rc3",
            "v20.1.0-rc2",
            "v20.1.0-rc1",
            "v20.0.18",
            "v20.0.17",
            "v20.0.16",
            "v20.0.15",
            "v20.0.13",
            "v20.0.12",
            "v20.0.11",
            "v20.0.10",
            "v20.0.8",
            "v20.0.7",
            "v20.0.6",
            "v20.0.5",
            "v20.0.4",
            "v20.0.3",
            "v20.0.2",
            "v20.0.1",
            "v20.0.0",
            "v19.4.4",
            "v19.4.3",
            "v19.4.2",
            "v19.4.1",
            "v19.4.0",
            "1.9.0.1",
            "1.9.1.1",
            "1.9.1.0-lts",
            "1.9.0.0",
            "1.8.1.0",
            "1.7.0.2",
            "1.7.0.1",
            "1.7.0.0",
            "1.6.1.0",
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            "1.6.0.0-rc1",
            "1.6.0.0-beta1",
            "1.6.0.0-alpha1",
            "1.5.1.0",
            "1.5.0.1",
            "1.5.0.0",
            "1.5.0.0-rc2",
            "1.5.0.0-rc1",
            "1.5.0.0-beta2",
            "1.5.0.0-beta1",
            "1.5.0.0-alpha2",
            "1.5.0.0-alpha1",
            "1.4.2.0",
            "1.4.1.1",
            "1.4.1.0",
            "1.4.0.1",
            "1.3.2.4",
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            "1.4.0.0-rc1",
            "1.4.0.0-beta1",
            "1.4.0.0-alpha3",
            "1.4.0.0-alpha2",
            "1.4.0.0-alpha1",
            "1.3.2.3",
            "1.3.2.2",
            "1.3.2.1",
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            "1.3.1.1",
            "1.3.1",
            "1.3.0",
            "1.2.1.2",
            "1.2.1",
            "1.2.0.3",
            "1.2.0.2",
            "1.2.0.1",
            "1.2.0",
            "1.1.8",
            "1.1.7",
            "1.1.6",
            "1.1.5",
            "1.1.4",
            "1.1.3",
            "1.1.2",
            "1.1.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40098.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.179690649Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40098.json",
        "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-665x-ppc4-685w",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-40098"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40098.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-40098",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507797,
  "published_at": "2026-04-20T16:19:55.157+00:00"
}