GHSA-9PR5-G9XR-GP22

Vulnerability from github – Published: 2026-02-18 12:31 – Updated: 2026-02-18 12:31
VLAI?
Details

The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the b2s_curation_draft AJAX action in all versions up to, and including, 8.7.4. The curationDraft() function only verifies current_user_can('read') without checking whether the user has edit_post permission for the target post. Combined with the plugin granting UI access and nonce exposure to all roles, this makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the title and content of arbitrary posts and pages by supplying a target post ID via the 'b2s-draft-id' parameter.

Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-1942"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-18T11:16:32Z",
    "severity": "MODERATE"
  },
  "details": "The Blog2Social: Social Media Auto Post \u0026 Scheduler plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the b2s_curation_draft AJAX action in all versions up to, and including, 8.7.4. The curationDraft() function only verifies current_user_can(\u0027read\u0027) without checking whether the user has edit_post permission for the target post. Combined with the plugin granting UI access and nonce exposure to all roles, this makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the title and content of arbitrary posts and pages by supplying a target post ID via the \u0027b2s-draft-id\u0027 parameter.",
  "id": "GHSA-9pr5-g9xr-gp22",
  "modified": "2026-02-18T12:31:11Z",
  "published": "2026-02-18T12:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1942"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/blog2social/tags/8.7.3/includes/Ajax/Post.php#L159"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/blog2social/tags/8.7.3/includes/B2S/Curation/Save.php#L39"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php?rev=3462464"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/930e7fd6-ae0b-465a-aa93-04ef80011d32?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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