FKIE_CVE-2026-15947

Vulnerability from fkie_nvd - Published: 2026-09-19 08:16 - Updated: 2026-09-21 13:33
Severity
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Summary
The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_instant_indexing_settings() function in versions up to, and including, 2.6.23. This function is registered on the admin_init hook and only checks for the presence of $_POST['submit'] before writing attacker-supplied $_POST['metasync_post_types'] into the site-wide 'metasync_options_instant_indexing' option via update_option(); no current_user_can()/current_user_has_plugin_access() check and no nonce verification are performed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the site's Google Instant Indexing post-type configuration, controlling which post types are auto-submitted to Google's Instant Indexing service.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L384
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L6358
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L6364
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L384
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L6358
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L6364
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset/3676919
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/1bfba54f-961d-4889-9272-0020c9fa0801?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Search Atlas SEO \u2013 OTTO AI SEO Automation for WordPress",
          "vendor": "shahrukhlinkgraph",
          "versions": [
            {
              "lessThanOrEqual": "2.6.23",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_instant_indexing_settings() function in versions up to, and including, 2.6.23. This function is registered on the admin_init hook and only checks for the presence of $_POST[\u0027submit\u0027] before writing attacker-supplied $_POST[\u0027metasync_post_types\u0027] into the site-wide \u0027metasync_options_instant_indexing\u0027 option via update_option(); no current_user_can()/current_user_has_plugin_access() check and no nonce verification are performed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the site\u0027s Google Instant Indexing post-type configuration, controlling which post types are auto-submitted to Google\u0027s Instant Indexing service."
    }
  ],
  "id": "CVE-2026-15947",
  "lastModified": "2026-09-21T13:33:33.387",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-15947",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-19T13:24:40.330847Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-19T08:16:53.063",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L384"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L6358"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L6364"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L384"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L6358"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L6364"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset/3676919"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1bfba54f-961d-4889-9272-0020c9fa0801?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



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