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CVE-2026-19806

HIGH 8.8 CVSS 3.1
Published
September 1, 2026
Last modified
September 2, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-287
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

The Support Genix – Helpdesk, AI Chatbot, Knowledge Base & Customer Support Ticketing System plugin for WordPress is vulnerable to Authentication Bypass leading to Administrator Account Takeover in all versions up to, and including, 1.4.52 via the `guest_ticket_login()` function and its `p` parameter. This is due to the site-wide AES-256-CBC encryption key being derived from only three two-digit `wp_rand(10, 99)` values and a Unix timestamp via `md5()` — yielding approximately 19.5 bits of entropy — combined with a deterministic IV derived from the password, no authentication tag on the ciphertext, and no capability check, nonce, or session validation on the publicly reachable `/sgnix/?p=<token>` endpoint. This makes it possible for authenticated attackers, with subscriber-level access and above, who can obtain a single legitimate guest ticket token as a known-plaintext oracle and bound the plugin activation timestamp, to exhaust the ~729,000-candidate keyspace entirely offline, recover the site-wide encryption key, and forge a self-consistent `{ticket_id, ticket_user}` token targeting any administrator-owned ticket. Submitting the forged token to the unprotected endpoint causes `wp_set_auth_cookie()` to be called for that administrator, granting the attacker full administrative access to the WordPress site.

Affected WordPress components

  • Support Genix – Helpdesk, AI Chatbot, Knowledge Base & Customer Support Ticketing System Plugin · support-genix-lite
    Confirmed match Active
    Up to and including 1.4.52
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • devitemsllc Support Genix – Helpdesk, AI Chatbot, Knowledge Base & Customer Support Ticketing System — Up to and including 1.4.52

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.50/core/secondary_helper.php#L754
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.50/libs/Apbd_Wps_EncryptionLib.php#L27
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.50/models/database/Mapbd_wps_ticket.php#L457
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.50/modules/Apbd_wps_settings.php#L152
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.50/modules/Apbd_wps_settings.php#L748
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.51/core/secondary_helper.php#L754
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.51/libs/Apbd_Wps_EncryptionLib.php#L27
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.51/models/database/Mapbd_wps_ticket.php#L457
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.51/modules/Apbd_wps_settings.php#L152
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/support-genix-lite/tags/1.4.51/modules/Apbd_wps_settings.php#L748
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3668350%40support-genix-lite&new=3668350%40support-genix-lite
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/188f7c1d-e8ad-4114-9aa4-c3e8b51c5f2c?source=cve
  • nvd.nist.gov Official NVD record