AVideo < 20.1 Unauthenticated RCE via Predictable Installation Salt

{
  "id": "942cf03416d4fcce281b25e588303724d8bc423b692afc20a8f95336f59c1ff8",
  "url": "https://osv.dev/vulnerability/CVE-2025-34433",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "AVideo < 20.1 Unauthenticated RCE via Predictable Installation Salt",
    "summary": "AVideo versions 14.3.1 prior to 20.1 contain an unauthenticated remote code execution vulnerability caused by predictable generation of an installation salt using PHP uniqid(). The installation timestamp is exposed via a public endpoint, and a derived hash identifier is accessible through unauthenticated API responses, allowing attackers to brute-force the remaining entropy. The recovered salt can then be used to encrypt a malicious payload supplied to a notification API endpoint that evaluates attacker-controlled input, resulting in arbitrary code execution as the web server user.",
    "evidence": "osv:CVE-2025-34433",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2025-34433",
      "aliases": [
        "CVE-2025-34433"
      ],
      "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/wwbn/avideo",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4a53ab2"
                },
                {
                  "fixed": "a2bdbff"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "4a53ab2"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a2bdbff"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-34433.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.692167317Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/34xxx/CVE-2025-34433.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-34433",
        "https://www.vulncheck.com/advisories/avideo-unauthenticated-rce-via-predictable-installation-salt",
        "https://github.com/WWBN/AVideo/commit/4a53ab2",
        "https://github.com/WWBN/AVideo/commit/a2bdbff",
        "https://chocapikk.com/posts/2025/avideo-security-vulnerabilities/"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-94"
        ],
        "cna_assigner": "VulnCheck",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.3.1"
                  },
                  {
                    "fixed": "20.1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.3.1"
                  },
                  {
                    "fixed": "20.1"
                  }
                ],
                "source": "CPE_FIELD",
                "strategy": "CPEApplicability"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.3.1"
                  },
                  {
                    "fixed": "20.1"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/34xxx/CVE-2025-34433.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-34433",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497581,
  "published_at": "2025-12-19T15:37:39.775+00:00"
}