Optima Express IDX <= 8.7.5 - Unauthenticated Privilege Escalation to 'ihf_clear_cache' AJAX Action to Author Role Assignment

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-93901
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 08:16:41 UTC
Updated2026-09-25 14:17:24 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 7.3 HIGH from [email protected]

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

Problem Types: CWE-269 | CWE-269 CWE-269 Improper Privilege Management

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
3.1CNADECLARED7.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Ihomefinder Optima Express IDX affected 8.7.5 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinder.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/8ba63df6-ae71-4320-bb82-87d6e... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAjaxHandler.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinder.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Wordfence PRISM (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-21T22:24:51.000ZVendor Notified
CNA2026-09-24T18:52:57.000ZDisclosed

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