CVE-2021-48016

{
  "etk_id": "ETK-2026-2439",
  "cve_id": "CVE-2021-48016",
  "display_id": "CVE-2021-48016",
  "ghsa_id": "GHSA-8g3p-p68p-pg53",
  "euvd_id": "EUVD-2021-34899",
  "status": "published",
  "anchor_state": "anchored",
  "title": "PHP code injection in DedeCMS",
  "summary": "DedeCMS through 5.8.1-beta is affected by PHP code injection in its message-handling logic. An unauthenticated remote attacker may execute PHP and operating-system commands when the affected submission endpoint is exposed and accepts requests without a validation code.",
  "mitigation": "Disable or restrict access to the affected link-submission endpoint if it is not required, and enforce validation for submissions. Apply a vendor-supported corrected release when one is identified; the supplied evidence does not establish a fixed version.",
  "vendor": "DedeCMS",
  "product": "DedeCMS",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 5.8.1-beta"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "DedeCMS",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 9.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 35.02281745,
  "t0_at": "2026-10-22T10:57:31.176000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-22T13:36:32.589725+00:00",
      "days": 0.11043302922453704,
      "is_lower_bound": false,
      "measured_at": "2026-10-22T10:57:31.176000+00:00",
      "url": null
    },
    "kev": {
      "at": "2026-10-22T00:00:00+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-22T10:57:31.176000+00:00",
      "precision": "day",
      "url": "https://vulncheck.com/cve/CVE-2021-48016"
    },
    "trigger_signal": {
      "at": "2026-10-22T10:57:31.176000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-22T10:57:31.176000+00:00",
      "url": "https://github.com/advisories/GHSA-8g3p-p68p-pg53"
    }
  }
}