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GHSA-P45H-8JM6-4VHQ

Vulnerability from github – Published: 2026-09-09 06:31 – Updated: 2026-09-09 06:31
VLAI
Details

The Podlove Podcast Publisher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'episode_contributor[..][..][comment]' Parameter in all versions up to, and including, 4.5.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The contributor comment is stored in a plugin-managed custom table, bypassing WordPress core's wp_kses_post filter, and the save_post hook fires without a nonce check, meaning any user who can edit posts can exploit this without further preconditions.

Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-75966"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-09T04:19:55Z",
    "severity": "MODERATE"
  },
  "details": "The Podlove Podcast Publisher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via \u0027episode_contributor[..][..][comment]\u0027 Parameter in all versions up to, and including, 4.5.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The contributor comment is stored in a plugin-managed custom table, bypassing WordPress core\u0027s wp_kses_post filter, and the save_post hook fires without a nonce check, meaning any user who can edit posts can exploit this without further preconditions.",
  "id": "GHSA-p45h-8jm6-4vhq",
  "modified": "2026-09-09T06:31:37Z",
  "published": "2026-09-09T06:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75966"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.4/lib/modules/contributors/contributors.php#L25"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.4/lib/modules/contributors/contributors.php#L490"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.4/lib/modules/contributors/templates/contributor-table.twig#L59"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.4/lib/template/twig_filter.php#L139"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.5/lib/modules/contributors/contributors.php#L25"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.5/lib/modules/contributors/contributors.php#L490"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.5/lib/modules/contributors/templates/contributor-table.twig#L59"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpress/tags/4.5.5/lib/template/twig_filter.php#L139"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3671120%40podlove-podcasting-plugin-for-wordpress\u0026new=3671120%40podlove-podcasting-plugin-for-wordpress"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/fc9253bc-feee-422f-aafb-1630f2d1ad2e?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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