Security advisory

{
  "id": "0cda7af83765ad21c9fcec30b6dad337c28261321c46027659fe75e582f179ee",
  "url": "https://osv.dev/vulnerability/CVE-2019-16520",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-16520",
    "summary": "The all-in-one-seo-pack plugin before 3.2.7 for WordPress (aka All in One SEO Pack) is susceptible to Stored XSS due to improper encoding of the SEO-specific description for posts provided by the plugin via unsafe placeholder replacement.",
    "evidence": "osv:CVE-2019-16520",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-16520",
      "aliases": [
        "CVE-2019-16520"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/awesomemotive/all-in-one-seo-pack",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "242aefdd99715e64cba4f140cb476e5c1ae7b975"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:semperplugins:all_in_one_seo_pack:*:*:*:*:*:wordpress:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.2.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.2.6",
            "3.2.5",
            "3.2.4",
            "3.2.3",
            "3.2.2",
            "3.2.1",
            "3.2",
            "3.1.1",
            "3.1",
            "3.0.4",
            "3.0.3",
            "3.0.2",
            "3.0.1",
            "3.0",
            "2.12.1",
            "2.12",
            "2.11",
            "2.10.1",
            "2.10",
            "2.9.1",
            "2.9",
            "2.8",
            "2.7.3",
            "2.7.2",
            "2.7.1",
            "2.7",
            "2.6.1",
            "2.6",
            "2.5",
            "2.4.6",
            "2.4.5.1",
            "2.4.5",
            "2.4.4.1",
            "2.4.4",
            "2.4.3",
            "2.4.2.1",
            "2.4.2",
            "2.4.1.1",
            "2.4",
            "2.4.1",
            "2.3.16",
            "2.3.15.3",
            "2.3.15.2",
            "2.3.15.1",
            "2.3.15",
            "2.3.14.2",
            "2.3.14.1",
            "2.3.14",
            "2.3.13.2",
            "2.3.13",
            "2.3.12.5",
            "2.3.12.4",
            "2.3.12.3",
            "2.3.12.2.1",
            "2.3.12.2",
            "2.3.12.1",
            "2.3.12",
            "2.3.11.4",
            "2.3.11.2",
            "2.3.11.1",
            "2.3.11",
            "2.3.10.1",
            "2.3.9.2",
            "2.3.9",
            "2.3.8",
            "2.3.7",
            "2.3.6",
            "2.3.5.1",
            "2.3.5",
            "2.3.4.2",
            "2.3.4.1",
            "2.3.3.2",
            "2.3.3.1",
            "2.3.3",
            "2.3.2.1",
            "2.3.1",
            "2.3",
            "2.3-alpha"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16520.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:53.680470058Z",
      "provider": "osv",
      "references": [
        "https://semperplugins.com/all-in-one-seo-pack-changelog/",
        "https://wordpress.org/plugins/all-in-one-seo-pack/#developers",
        "https://wpvulndb.com/vulnerabilities/9915",
        "https://github.com/semperfiwebdesign/all-in-one-seo-pack/issues/2888",
        "https://github.com/sbaresearch/advisories/tree/public/2019/SBA-ADV-20190913-04_WordPress_Plugin_All_in_One_SEO_Pack"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-16520",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382325,
  "published_at": "2019-10-16T14:15:13.777+00:00"
}