{
 "id": "WPSEC-2026-3123",
 "url": "https://wpsec.com/vuln/WPSEC-2026-3123/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-3123/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-3123/index.md",
 "title": "Gutenverse <= 4.2.2 - Unauthenticated Denial of Service via Post Block Pagination Attributes",
 "description": "The Gutenverse plugin for WordPress is vulnerable to Denial of Service via the 'numberPost' and 'paginationNumberPost' post block attributes accepted by the public 'gutenverse-client/v1/postblock/data' REST endpoint in all versions up to, and including, 4.2.2. This is due to the attributes being cast to integers without a lower bound, so a value of zero or a negative number makes the loop in count_total_page() run without end. This makes it possible for unauthenticated attackers to tie up PHP workers and exhaust server resources by sending repeated requests with crafted block attributes.",
 "plugin": {
  "slug": "gutenverse",
  "name": "Gutenverse",
  "full_name": "Gutenverse – WordPress Blocks, Page Builder & Site Editor",
  "wordpress_org": "https://wordpress.org/plugins/gutenverse/",
  "advisories_url": "https://wpsec.com/vuln/plugin/gutenverse/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/gutenverse"
 },
 "type": "DOS",
 "cwe": [
  "CWE-835"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 7.5,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "severity": "High"
 },
 "affected": {
  "ranges": [
   {
    "from": "1.5.0",
    "from_inclusive": true,
    "to": "4.2.3",
    "to_inclusive": false
   }
  ],
  "text": [
   "from 1.5.0 before 4.2.3"
  ]
 },
 "introduced_in": "1.5.0",
 "fixed_in": "4.2.3",
 "remediation": "Update to 4.2.3 or later.",
 "fix_released": "2026-11-13T03:17:34+00:00",
 "published": "2026-11-14T03:40:57+00:00",
 "updated": "2026-11-13T15:54:05.372003+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-3123/",
  "https://plugins.svn.wordpress.org/gutenverse/tags/4.2.3/",
  "https://wordpress.org/plugins/gutenverse/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/gutenverse",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Medium",
  "affected_versions": "Medium",
  "as_of": "2026-11-14"
 }
}