Security advisory

{
  "id": "b40cf071c59a9e1974b2293009c0ad55e1503776da1e1650fd4af98e64449f8d",
  "url": "https://osv.dev/vulnerability/CVE-2020-36157",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36157",
    "summary": "An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka Unauthenticated Privilege Escalation via User Roles. Due to the lack of filtering on the role parameter that could be supplied during the registration process, an attacker could supply the role parameter with a WordPress capability (or any custom Ultimate Member role) and effectively be granted those privileges.",
    "evidence": "osv:CVE-2020-36157",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-36157",
      "aliases": [
        "CVE-2020-36157"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ultimatemember/ultimatemember",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "427bb6da1c2f984b0a0be7013e490496023bdcb6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ultimatemember:ultimate_member:*:*:*:*:*:wordpress:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.1.12"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.1.11",
            "2.1.10",
            "2.1.9",
            "2.1.8",
            "2.1.7",
            "2.1.6",
            "2.1.5",
            "2.1.4",
            "2.1.3",
            "2.1.3-rc.1",
            "2.1.2",
            "2.1.2-rc.1",
            "2.1.1",
            "2.1.0",
            "2.1.0-rc.2",
            "2.1.0-rc.1",
            "2.0.54",
            "2.0.53",
            "2.0.50",
            "2.0.49",
            "2.0.48",
            "2.0.47",
            "2.0.46",
            "2.0.45",
            "2.0.44",
            "2.0.43",
            "2.0.41",
            "2.0.39",
            "2.0.38",
            "2.0.37",
            "2.0.35",
            "2.0.34",
            "2.0.24",
            "2.0.17",
            "2.0.16",
            "2.0.11",
            "2.0.10",
            "2.0.9",
            "2.0.5",
            "2.0.4",
            "1.3.88",
            "1.3.88.6",
            "1.3.88.5",
            "1.3.88.4",
            "v1.3.88.3",
            "v1.3.88.2",
            "v1.3.88.1",
            "v1.3.84",
            "v1.3.83",
            "v1.3.82",
            "v1.3.81",
            "v1.3.79",
            "v1.3.78",
            "v1.3.76",
            "v1.3.75",
            "v1.3.74",
            "v1.3.73",
            "v1.3.72",
            "v1.3.71",
            "v1.3.69",
            "pre-v1.3.69.25",
            "pre-v1.3.69.24",
            "pre-v1.3.69.23",
            "pre-v1.3.69.22",
            "pre-v1.3.69.21",
            "pre-v1.3.69.20",
            "pre-v1.3.69.19",
            "pre-v1.3.69.18",
            "pre-v1.3.69.17",
            "pre-v1.3.69.16",
            "v1.3.68",
            "v1.3.67",
            "v1.3.66",
            "v1.3.65",
            "v1.3.64",
            "v1.3.63",
            "v1.3.62",
            "v1.3.61",
            "v1.3.60",
            "1.3.59",
            "v1.3.56",
            "v1.3.55",
            "v1.3.54",
            "v1.3.53",
            "v1.3.52",
            "v1.3.51",
            "pre-v1.3.50",
            "v1.3.49",
            "1.3.48",
            "v1.3.47",
            "v1.3.45",
            "v1.3.44",
            "v1.3.43",
            "v1.3.42",
            "v1.3.41",
            "v1.3.40",
            "v1.3.39",
            "v1.3.38",
            "v1.3.37",
            "v1.3.36",
            "v1.3.35",
            "v1.3.32",
            "v1.3.30",
            "v1.3.29"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36157.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:04.939837783Z",
      "provider": "osv",
      "references": [
        "https://wordpress.org/plugins/ultimate-member/#developers",
        "https://wpscan.com/vulnerability/33f059c5-58e5-44b9-bb27-793c3cedef3b",
        "https://www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabilities-affect-100k-sites-using-ultimate-member-plugin/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-36157",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440640,
  "published_at": "2021-01-04T18:15:13.777+00:00"
}