{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.6.12"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "685ccbbe7d204132a843a7b7fd802d1bdb3f20a9"
            },
            {
              "fixed": "f035a1570bf38146340b2dce9161cfd63ba9a1cb"
            }
          ],
          "repo": "https://github.com/bunkerity/bunkerweb",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-254j-92cv-m443"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-20",
      "CWE-74"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54728.json"
  },
  "details": "bunkerweb is an Open-source and next-generation Web Application Firewall (WAF). Prior to BunkerWeb 1.6.12 and BunkerWeb PRO 0.57, authenticated Host header handling in the BunkerWeb UI and API improperly validated and neutralized user-controlled input in a configuration-dependent path, allowing a low-privileged authenticated user to escalate privileges and affect confidentiality, integrity, and availability of the BunkerWeb instance. This issue is fixed in BunkerWeb version 1.6.12 and BunkerWeb PRO version 0.57.",
  "id": "CVE-2026-54728",
  "modified": "2026-07-19T03:31:10.527397781Z",
  "published": "2026-07-16T19:18:17.637Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/bunkerity/bunkerweb/releases/tag/v1.6.12"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54728.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/bunkerity/bunkerweb/security/advisories/GHSA-254j-92cv-m443"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54728"
    },
    {
      "type": "FIX",
      "url": "https://github.com/bunkerity/bunkerweb/commit/685ccbbe7d204132a843a7b7fd802d1bdb3f20a9"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "bunkerweb: Improper Input Validation and Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in BunkerWeb"
}