Security advisory

{
  "id": "663b0d44fdcd060d073ec4cfbd62cd449adcf20728ef10a769217aeecf415d27",
  "url": "https://osv.dev/vulnerability/CVE-2021-24841",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-24841",
    "summary": "The Helpful WordPress plugin before 4.4.59 does not sanitise and escape some of its settings, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed",
    "evidence": "osv:CVE-2021-24841",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-24841",
      "aliases": [
        "CVE-2021-24841"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pixelbart/helpful",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ad7b2985282dd9948c8df00703d5f382d5df3216"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:helpful_project:helpful:*:*:*:*:*:wordpress:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.4.59"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.4.58",
            "4.4.57",
            "4.4.56",
            "4.4.55",
            "4.4.54",
            "4.4.53",
            "4.4.52",
            "4.4.51",
            "4.4.50",
            "4.4.49",
            "4.4.48",
            "4.4.47",
            "4.4.46",
            "4.4.45",
            "4.4.44",
            "4.4.43",
            "4.4.42",
            "4.4.41",
            "4.4.40",
            "4.4.39",
            "4.4.38",
            "4.4.37",
            "4.4.35",
            "4.4.34",
            "4.4.33",
            "4.4.32",
            "4.4.31",
            "4.4.30",
            "4.4.29",
            "4.4.28",
            "4.4.27",
            "4.4.26",
            "4.4.25",
            "4.4.24",
            "4.4.23",
            "4.4.22",
            "4.4.21",
            "4.4.20",
            "4.4.19",
            "4.4.18",
            "4.4.17",
            "4.4.16",
            "4.4.15",
            "4.4.14",
            "4.4.13",
            "4.4.12",
            "4.4.11",
            "4.4.10",
            "4.4.9",
            "4.4.8",
            "4.4.7",
            "4.4.6",
            "4.4.5",
            "4.4.4",
            "4.4.3",
            "4.4.2",
            "4.4.1",
            "4.4.0",
            "4.3.2",
            "4.3.1",
            "4.3.0",
            "4.2.28",
            "4.2.27",
            "4.2.26",
            "4.2.25",
            "4.2.24",
            "4.2.23",
            "4.2.22",
            "4.2.21",
            "4.2.20",
            "4.2.19",
            "4.2.18",
            "4.2.17",
            "4.2.16",
            "4.2.15",
            "4.2.14",
            "4.2.12",
            "4.2.11",
            "4.2.10",
            "4.2.9",
            "4.2.8",
            "4.2.7",
            "4.2.6",
            "4.2.5",
            "4.2.4",
            "4.2.1",
            "4.2.0",
            "4.1.3",
            "4.1.2",
            "4.1.1",
            "4.1.0",
            "4.0.23",
            "4.0.22",
            "4.0.21",
            "4.0.20"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-24841.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:53.062091228Z",
      "provider": "osv",
      "references": [
        "https://mikadmin.fr/tech/XSS-Stored-Helpful-5b10bc7f40ab319f9797eb4abad4f420660.pdf",
        "https://wpscan.com/vulnerability/55d11acf-8c47-40da-be47-24f74fd7566e"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-24841",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 437827,
  "published_at": "2021-11-17T11:15:08.22+00:00"
}