Security advisory

{
  "id": "9ca5ea92d823860e694351569034091210c95dbc0a30b9b21e5af7d661acdc91",
  "url": "https://osv.dev/vulnerability/CVE-2021-27556",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-27556",
    "summary": "The Cron job tab in EasyCorp ZenTao 12.5.3 allows remote attackers (who have admin access) to execute arbitrary code by setting the type parameter to System.",
    "evidence": "osv:CVE-2021-27556",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-27556",
      "aliases": [
        "CVE-2021-27556"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/easysoft/zentaopms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2422e1f0d4eacf1cfcbdf2ed7e1bd4f894d550f5"
                },
                {
                  "last_affected": "2422e1f0d4eacf1cfcbdf2ed7e1bd4f894d550f5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:easycorp:zentao:12.5.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "12.5.3"
                      },
                      {
                        "last_affected": "12.5.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "12.5.3",
            "zentaopms_12.5.3_20210108"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27556.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:30.616701722Z",
      "provider": "osv",
      "references": [
        "https://privasec.com/blog/zentao-cms-a-monkeys-journey-to-priv-esc-remote-code-execution/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-27556",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 432618,
  "published_at": "2021-08-31T03:15:06.317+00:00"
}