phpIPAM through 1.8.3 Missing Authorization in Customers, Locations and NAT Pages

{
  "id": "c3031f41a3b1cf86b2a2f981da2f5ea9281916bea7c74ec86ccd6952ae4f3613",
  "url": "https://osv.dev/vulnerability/CVE-2026-108720",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "phpIPAM through 1.8.3 Missing Authorization in Customers, Locations and NAT Pages",
    "summary": "phpIPAM through 1.8.3 contains a missing authorization vulnerability that allows authenticated low-privilege users to view restricted subnets and addresses because customer, location and NAT pages skip Subnets::check_permission. Attackers can open customer objects.php, single-location.php or nat_details.php to read IP addresses, CIDRs, hostnames and MAC addresses from sections they cannot access.",
    "evidence": "osv:CVE-2026-108720",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-108720",
      "aliases": [
        "CVE-2026-108720"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/phpipam/phpipam",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "e8010751d491e485acefa5787fb0e518eb948771"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.8.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.8.3"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.8.3",
            "v1.8.2",
            "v1.8.1",
            "v1.7.4",
            "v1.7.1",
            "v1.7.0",
            "v1.6.0",
            "v1.5.0",
            "v1.3.2",
            "v1.3.0",
            "v1.2.0_beta2",
            "v1.19.008",
            "v1.16.003"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108720.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.172643002Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108720.json",
        "https://hackmd.io/@haind/phpipam-tools-cross-section-address-disclosure",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-108720",
        "https://www.vulncheck.com/advisories/phpipam-through-1.8.3-missing-authorization-in-customers-locations-and-nat-pages",
        "https://github.com/phpipam/phpipam",
        "https://github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/tools/customers/customer/objects/ipaddresses.php#L69-L110",
        "https://github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/tools/locations/single-location.php#L129-L195",
        "https://github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/tools/nat/nat_details.php#L16-L45"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108720.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-108720",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 491930,
  "published_at": "2026-10-11T12:19:31.281+00:00"
}