{
  "schema_version": "1.4.0",
  "id": "GHSA-v8j6-6c2r-r27c",
  "modified": "2022-07-27T04:19:48Z",
  "published": "2022-04-13T00:00:30Z",
  "aliases": [
    "CVE-2021-31805"
  ],
  "summary": "Expression Language Injection in Apache Struts",
  "details": "The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.struts:struts2-core"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.5.30"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31805"
    },
    {
      "type": "WEB",
      "url": "https://cwiki.apache.org/confluence/display/WW/S2-062"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220420-0001"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2022/04/12/6"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-917"
    ],
    "severity": "CRITICAL",
    "github_reviewed": true,
    "github_reviewed_at": "2022-04-22T20:30:35Z",
    "nvd_published_at": "2022-04-12T16:15:00Z"
  }
}