Wavelog: Unauthenticated Remote Code Execution

{
  "id": "6cace49e8ccf68a84b79fdc2e63807fdb2ccb0da82b8937a4be00f05067165e9",
  "url": "https://osv.dev/vulnerability/CVE-2026-54237",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Wavelog: Unauthenticated Remote Code Execution",
    "summary": "Wavelog is web-based amateur radio logging software. From 1.8 until 2.4.2, Wavelog exposes /install/ajax.php and /install/includes/interface_assets/triggers.php after installation without an installation lock or permission check. Unsanitized input reaches write_config() and write_configfile() in install/includes/core/core_class.php, allowing a remote unauthenticated attacker to read or write log files and place attacker-controlled content into PHP configuration files. The resulting PHP configuration content can execute on the server. This issue is fixed in version 2.4.2.",
    "evidence": "osv:CVE-2026-54237",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-54237",
      "aliases": [
        "CVE-2026-54237",
        "GHSA-jxjv-chgm-rh36"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/wavelog/wavelog",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b2ebcaa40d9312b3494edc55026138fb54478039"
                },
                {
                  "fixed": "1e79fd84e8d7d43a6d63eae9efca493dd771e626"
                },
                {
                  "fixed": "9661efa86eff4598bd1a7ad8ca4ec60e76b6fb25"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "1.8"
                      },
                      {
                        "fixed": "2.4.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9661efa86eff4598bd1a7ad8ca4ec60e76b6fb25"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1e79fd84e8d7d43a6d63eae9efca493dd771e626"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.4.2"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.4.1",
            "2.4",
            "2.3.1",
            "2.3",
            "2.2.2",
            "2.2.1",
            "2.2",
            "2.1.2",
            "2.1.1",
            "2.1",
            "2.0.7",
            "2.0.6",
            "2.0.5",
            "2.0.4",
            "2.0.3",
            "2.0.2",
            "2.0.1",
            "2.0",
            "1.9.1",
            "1.9",
            "1.8.8",
            "1.8.7",
            "1.8.6",
            "1.8.5",
            "1.8.4",
            "1.8.3",
            "1.8.2",
            "1.8",
            "1.8.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54237.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:46.140806097Z",
      "provider": "osv",
      "references": [
        "https://github.com/wavelog/wavelog/releases/tag/2.4.2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54237.json",
        "https://github.com/wavelog/wavelog/security/advisories/GHSA-jxjv-chgm-rh36",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-54237",
        "https://github.com/wavelog/wavelog/commit/9661efa86eff4598bd1a7ad8ca4ec60e76b6fb25",
        "https://github.com/wavelog/wavelog/pull/3228"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862",
          "CWE-94"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54237.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-54237",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514225,
  "published_at": "2026-09-17T20:14:10.057+00:00"
}