AVideo-Encoder: unauthenticated installer PHP code injection

{
  "id": "791888674ba160c9a73f101d6b29035f66f2d13461dc2de59e7bdcd7c27232dc",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-61564",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "AVideo-Encoder: unauthenticated installer PHP code injection",
    "summary": "AVideo is a video-sharing Platform. Prior to 8.1.0, the unauthenticated installer endpoint `install/checkConfiguration.php` assembles `videos/configuration.php` by interpolating request parameters, including `webSiteRootURL`, into single-quoted PHP string literals without escaping. An attacker can terminate a literal and inject PHP that executes as the web-server user when the generated, directly requestable file is loaded. Exploitation requires `videos/configuration.php` to be absent, as on every fresh deployment or after the file is removed or moved; an existing file blocks this endpoint. The supplied `systemRootPath` must contain index.php and a connection using `databaseHost`, `databaseUser`, and `databasePass` must succeed, but the attacker can point those parameters to their own database server and needs no target credentials. The write location is also derived from `systemRootPath` without a base-directory constraint. This permits arbitrary command execution, reading and overwriting files owned by the web-server user, persistent PHP code, and control over stored database connection settings. The endpoint additionally interpolates request values into streamer and configuration INSERT statements, creating a secondary SQL-injection sink. This issue is fixed in version 8.1.0.",
    "evidence": "cve:CVE-2026-61564",
    "products": [
      {
        "name": {
          "value": "AVideo-Encoder",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-61564",
      "aliases": [
        "CVE-2026-61564"
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "scope": "CHANGED",
            "version": "3.1",
            "baseScore": 10,
            "attackVector": "NETWORK",
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "confidentialityImpact": "HIGH"
          }
        }
      ],
      "affected": [
        {
          "vendor": "WWBN",
          "product": "AVideo-Encoder",
          "versions": [
            {
              "status": "affected",
              "version": "< 8.1.0"
            }
          ]
        }
      ],
      "modified": "2026-10-28T21:42:42.397Z",
      "provider": "cve",
      "references": [
        "https://github.com/WWBN/AVideo-Encoder/security/advisories/GHSA-xrj3-cqm8-r992",
        "https://github.com/WWBN/AVideo-Encoder/commit/0faaddebd11c087885d25a7e0513745465cad411",
        "https://github.com/WWBN/AVideo-Encoder/releases/tag/v8.1.0"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
          "shortName": "GitHub_M",
          "dateUpdated": "2026-10-28T21:42:42.397Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-61564",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 495500,
  "published_at": "2026-10-28T21:42:42.397+00:00"
}