{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "5.5.3-#182"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "61cce55ab26ef88fb782dfde47b44c17c56978cd"
            }
          ],
          "repo": "https://github.com/macwarrior/clipbucket-v5",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-434"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77929.json"
  },
  "details": "ClipBucket v5 before 5.5.3-#182 contains a file upload vulnerability that allows authenticated users to achieve remote code execution by uploading a PHP file with valid image magic bytes through the photo upload endpoint. The FileUpload::manageFile() function in fileupload.class.php fails to update the file extension after MIME validation, allowing an attacker-controlled .php extension to persist on disk and execute as PHP via PHP-FPM when the uploaded file is retrieved.",
  "id": "CVE-2026-77929",
  "modified": "2026-09-20T11:30:45.432825030Z",
  "published": "2026-09-18T14:23:40.318Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77929.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.3-%23182"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77929"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/clipbucket-remote-code-execution-via-photo-upload-endpoint"
    },
    {
      "type": "FIX",
      "url": "https://github.com/MacWarrior/clipbucket-v5/commit/61cce55ab26ef88fb782dfde47b44c17c56978cd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/MacWarrior/clipbucket-v5"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ClipBucket \u003c 5.5.3-#182 Remote Code Execution via Photo Upload Endpoint"
}