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CVE-2026-109367

Full vulnerability record from the local CVENow database.

Description

The All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.0.3 via the 's' parameter. This makes it possible for unauthenticated attackers to extract arbitrary non-public post meta values, including sensitive custom fields such as API keys and internal notes, emitted verbatim into the HTML title element and JSON-LD SearchResultsPage schema.

Severity
MEDIUM
CVSS score
5.3 (v3.1)
Vulnerability status
Received
Source identifier
Published
2026-10-31 09:16:32.793000
Last modified
2026-10-31 09:16:32.793000
View original CVE JSON
{
  "id": "CVE-2026-109367",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-31T09:16:32.793",
  "lastModified": "2026-10-31T09:16:32.793",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.0.3 via the 's' parameter. This makes it possible for unauthenticated attackers to extract arbitrary non-public post meta values, including sensitive custom fields such as API keys and internal notes, emitted verbatim into the HTML title element and JSON-LD SearchResultsPage schema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "smub",
          "product": "All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights)",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "5.0.3",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.3/app/Common/Meta/Helpers.php#L95",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.3/app/Common/Meta/Title.php#L116",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.3/app/Common/Utils/Tags.php#L1214",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.3/app/Common/Utils/Tags.php#L1393",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.3/app/Common/Utils/Tags.php#L1494",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.3/app/Common/Utils/Tags.php#L965",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/changeset/3760115/all-in-one-seo-pack/trunk/app/Common/Utils/Tags.php",
      "source": "[email protected]"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/75510022-382c-4d03-9c59-1d06349e72bb?source=cve",
      "source": "[email protected]"
    }
  ]
}