Security advisory

{
  "id": "4d17456a25c9e935b406973c334885d9d11d57d148f952f55e67d471103a90a8",
  "url": "https://osv.dev/vulnerability/CVE-2021-24979",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-24979",
    "summary": "The Paid Memberships Pro WordPress plugin before 2.6.6 does not escape the s parameter before outputting it back in an attribute in an admin page, leading to a Reflected Cross-Site Scripting",
    "evidence": "osv:CVE-2021-24979",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-24979",
      "aliases": [
        "CVE-2021-24979"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/strangerstudios/paid-memberships-pro",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4fff3a9613f395d375e9098ed46c6dd70d0dc40b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:strangerstudios:paid_memberships_pro:*:*:*:*:*:wordpress:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.6.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.5.2",
            "v2.4.4",
            "2.6.5",
            "2.6.4",
            "2.6.3",
            "2.6.2",
            "2.6.1.1",
            "2.6.1",
            "2.6",
            "v2.5.7",
            "v2.5.6",
            "v2.5.5",
            "v2.5.4",
            "v2.5.1",
            "v2.5",
            "v2.0.5",
            "v2.4.3",
            "v2.4.2",
            "v2.4.1",
            "v2.4",
            "v2.3.4",
            "v2.3.3",
            "v2.2.6",
            "v2.2.5",
            "v2.2.3",
            "v2.2.4",
            "v2.2.2",
            "v2.2",
            "v2.0.7",
            "v2.0.4",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0",
            "release-1.9.4.4",
            "release-1.9.4.2",
            "release-1.9.4.3",
            "release-1.9.4.1",
            "release-1.9.4",
            "archive/v1.9.4",
            "release-1.9.3",
            "release-1.9.2.1",
            "release-1.9.2",
            "release-1.9.1",
            "release-1.9",
            "release-1.8.13.6",
            "release-1.8.13.5",
            "release-1.8.13.4",
            "release-1.8.13.3",
            "release-1.8.13.2",
            "release-1.8.13.1",
            "release-1.8.13",
            "release-1.8.12.1",
            "release-1.8.12",
            "release-1.8.11.2",
            "release-1.8.11.1",
            "release-1.8.11",
            "release-1.8.10.4",
            "release-1.8.10.3",
            "release-1.8.10.2",
            "release-1.8.10.1",
            "release-1.8.9.1",
            "release-1.8.9",
            "release-1.8.8.3",
            "release-1.8.8.1",
            "release-1.8.8",
            "release-1.8.7.3",
            "release-1.8.7",
            "release-1.8.6.8",
            "release-1.8.6.7",
            "release-1.8.6.6",
            "release-1.8.4.5",
            "release-1.8.4.3",
            "release-1.8.4.2",
            "release-1.8.4",
            "release-1.8.3",
            "release-1.8.2.2",
            "release-v1.8.2.1",
            "release-1.8.2",
            "release-1.8.1",
            "release-1.8",
            "v1.7.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-24979.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:46.814179833Z",
      "provider": "osv",
      "references": [
        "https://plugins.trac.wordpress.org/changeset/2632369/paid-memberships-pro/tags/2.6.6/adminpages/discountcodes.php",
        "https://wpscan.com/vulnerability/fc011990-4ec1-4553-901d-4ff1f482cb79"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-24979",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436417,
  "published_at": "2021-12-27T11:15:09.19+00:00"
}