---
id: CVE-2026-93901
title: >-
  The Optima Express IDX plugin for WordPress is vulnerable to Privilege
  Escalation in all versions up to, and including, 8.7.5
summary: >-
  The Optima Express IDX plugin for WordPress is vulnerable to Privilege
  Escalation in all versions up to, and including, 8.7.5. This is due to the
  `provisionBlogCredentials()` function in `iHomefinderAdmin.php` being
  reachable via the `wp…
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-269
vendor: ihomefinder
product: Optima Express IDX
affected:
  - optima_express_idx <= 8.7.5
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T08:16:41.837'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93901'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinder.php#L176
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinder.php#L291
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L369
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L498
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L752
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L795
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L818
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAjaxHandler.php#L146
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3706448%40optima-express&new=3706448%40optima-express
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/8ba63df6-ae71-4320-bb82-87d6e17cc47d?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T08:01:56.740Z'
---

## Overview

The Optima Express IDX plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 8.7.5. This is due to the `provisionBlogCredentials()` function in `iHomefinderAdmin.php` being reachable via the `wp_ajax_nopriv_ihf_clear_cache` AJAX action — through the call chain `iHomefinderAjaxHandler::clearCache()` → `activateAuthenticationToken()` → `getAuthenticationInfo()` → `provisionBlogCredentials()` — with no capability check, nonce verification, or ownership validation, and the function unconditionally calling `$user->set_role('author')` on whichever WordPress account matches the hard-coded login `optima-express` via `get_user_by('login', 'optima-express')`. This makes it possible for unauthenticated attackers to escalate a pre-registered `optima-express` account to the Author role, gaining `publish_posts`, `upload_files`, and `edit_published_posts` capabilities, including access to the plugin's own `/wp-json/optima-express/v1/blog-post` REST endpoint. Exploitation requires open user registration to be enabled on the target site, and the attacker must register the `optima-express` username before the plugin has had the opportunity to provision that login for its own integration account.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.