Reflected XSS in LMS

{
  "id": "ad288802b92fa78db634045b1cecef86556123ca079cbf205458b11d0ee80bca",
  "url": "https://osv.dev/vulnerability/CVE-2026-40457",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Reflected XSS in LMS",
    "summary": "A Reflected Cross-Site Scripting (XSS) vulnerability exists in LMS (LAN Management System) before commit 9c5651b in the \"dbrecover.php\" and \"netremap.php\" modules where unsanitized GET parameters are directly embedded into HTML output. This allows an attacker to inject arbitrary JavaScript when an authenticated user clicks a crafted link, provided the required conditions (such as a network defined in the system) are met.",
    "evidence": "osv:CVE-2026-40457",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-40457",
      "aliases": [
        "CVE-2026-40457"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/chilek/lms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9c5651b"
                },
                {
                  "fixed": "9c5651b39bfd086cc34fc9a78ddaa8c0815af114"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "9c5651b"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9c5651b39bfd086cc34fc9a78ddaa8c0815af114"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "LMS_27",
            "LMS_25",
            "LMS_24",
            "LMS_011123",
            "LMS_011122",
            "LMS_011121",
            "LMS_011119",
            "LMS_011118",
            "LMS_011117",
            "LMS_011116",
            "LMS_011115",
            "LMS_011114",
            "X_Dira",
            "X_Aris",
            "X_Bray",
            "X_Kri",
            "LMS_011109",
            "LMS_011108",
            "LMS_011107",
            "LMS_011106",
            "LMS_011105",
            "LMS_011104",
            "LMS_011103",
            "LMS_011102",
            "X_Talus",
            "X_Thoth",
            "X_Idos",
            "LMS_010907",
            "X_Belos",
            "X_Tagar",
            "X_Mot",
            "X_Zarin",
            "X_Thanos",
            "X_Jumar",
            "LMS_010900",
            "X_Grannus",
            "X_Shaq'Ran",
            "X_Wraith",
            "LMS_010703",
            "X_Doci",
            "LMS_010701",
            "LMS_010700",
            "LMS_010506",
            "LMS_010505",
            "LMS_010504",
            "LMS_010503",
            "LMS_010502",
            "LMS_010501",
            "X_Marduk",
            "X_Osiris",
            "X_Ju",
            "X_Terok",
            "X_Sokar",
            "LMS_010302",
            "X_Kinsey",
            "X_Maybourne",
            "X_Apophis",
            "X_Cronos",
            "LMS_010107",
            "X_Seth",
            "LMS_010105",
            "LMS_010104",
            "OLD_FINANCES",
            "LMS_010103",
            "LMS_010102",
            "LMS_010101",
            "LMS_010100",
            "NO_LANGUAGE_SUPPORT",
            "multilanguage",
            "LMS_010000_rc1",
            "LMS_0100_pre10",
            "LMS_0100_pre9",
            "LMS_0100_pre8",
            "LMS_0100_pre7",
            "LMS_0100_pre6",
            "hunter-devel",
            "LMS_0100_pre5",
            "LMS_0100_pre4",
            "LMS_0100_pre3",
            "LMS_0100_pre2",
            "LMS_0100_pre1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40457.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.394065986Z",
      "provider": "osv",
      "references": [
        "https://lms.org.pl/",
        "https://cert.pl/posts/2026/06/CVE-2026-40455",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40457.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-40457",
        "https://github.com/chilek/lms/commit/9c5651b39bfd086cc34fc9a78ddaa8c0815af114",
        "https://github.com/chilek/lms"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "CERT-PL",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40457.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-40457",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504770,
  "published_at": "2026-06-18T10:58:53.193+00:00"
}