---
cve: "CVE-2026-93901"
severity: "HIGH"
cvss: 7.3
epss: ""
vendor: "ihomefinder"
kev: false
exploited: false
published: "2026-09-25 08:16:41"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-30T07:14:58+02:00"
---

# CVE-2026-93901

> 7.3 HIGH

## Beschreibung

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.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Gering | warn |

## Referenzen

- <https://www.wordfence.com/threat-intel/vulnerabilities/id/8ba63df6-ae71-4320-bb82-87d6e17cc47d?source=cve>
- <https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L818>
- <https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L795>
- <https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAjaxHandler.php#L146>
- <https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinder.php#L291>
- <https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L369>
- <https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L498>
- <https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinder.php#L176>
- <https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L752>
- <https://plugins.trac.wordpress.org/changeset?reponame=&old=3706448%40optima-express&new=3706448%40optima-express>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-93901) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_