{"id":"CVE-2026-93901","state":"PUBLISHED","title":"Optima Express IDX <= 8.7.5 - Unauthenticated Privilege Escalation to 'ihf_clear_cache' AJAX Action to Author Role Assignment","description":"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.","publishedAt":"2026-09-25T07:40:28.520Z","updatedAt":"2026-09-25T13:00:14.639Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","source":"Wordfence"},"assigner":"Wordfence","products":["ihomefinder Optima Express IDX"],"affected":[{"vendor":"ihomefinder","product":"Optima Express IDX","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"8.7.5","versionType":"semver"}]}],"references":["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"],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93901.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93901","state":"PUBLISHED","datePublished":"2026-09-25T07:40:28.520Z","dateUpdated":"2026-09-25T13:00:14.639Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-09-18T20:38:39.058Z"},"containers":{"cna":{"title":"Optima Express IDX <= 8.7.5 - Unauthenticated Privilege Escalation to 'ihf_clear_cache' AJAX Action to Author Role Assignment","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"ihomefinder","product":"Optima Express IDX","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"8.7.5","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/8ba63df6-ae71-4320-bb82-87d6e17cc47d?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L818"},{"url":"https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L795"},{"url":"https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAjaxHandler.php#L146"},{"url":"https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinder.php#L291"},{"url":"https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L369"},{"url":"https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L498"},{"url":"https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinder.php#L176"},{"url":"https://plugins.trac.wordpress.org/browser/optima-express/tags/8.7.5/iHomefinderAdmin.php#L752"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3706448%40optima-express&new=3706448%40optima-express"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","baseScore":7.3,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","lang":"en","description":"CWE-269 Improper Privilege Management","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-09-25T07:40:28.520Z"},"credits":[{"lang":"en","type":"finder","value":"Wordfence PRISM"}],"timeline":[{"time":"2026-09-21T22:24:51.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-09-24T18:52:57.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-93901","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-25T12:50:36.846826Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-25T13:00:14.639Z"}}]}}}