EUVD-2026-86601

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 wpajaxnoprivihfclearcache AJAX action — through the call chain...

CVE-2026-93901 Optima Express IDX <= 8.7.5 - Unauthenticated Privilege Escalation to 'ihf_clear_cache' AJAX Action to Author Role Assignment

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 wpajaxnoprivihfclearcache AJAX action — through the call chain...

CVE-2026-93901 Optima Express IDX <= 8.7.5 - Unauthenticated Privilege Escalation to 'ihf_clear_cache' AJAX Action to Author Role Assignment

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 wpajaxnoprivihfclearcache AJAX action — through the call chain...

CVE-2026-93901

The Optima Express IDX plugin for WordPress (versions

CVE-2026-93901: Improper Privilege Management

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 wpajaxnoprivihfclearcache AJAX action — through the call chain...

PT-2026-98396

Name of the Vulnerable Software and Affected Versions Optima Express IDX versions prior to 8.7.6 Description An issue allows unauthenticated attackers to escalate the privileges of a pre-registered account to the Author role. This occurs because the provisionBlogCredentials function in...

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

Unauthenticated Privilege Escalation to 'ihfclearcache' AJAX Action to Author Role Assignment vulnerability discovered by Wordfence PRISM - Wordfence in WordPress Plugin Optima Express + MarketBoost IDX Plugin versions = 8.7.5...

CVE-2026-18120

Concrete CMS before 9.5.3 exposed a legacy Express entry search endpoint that returned entry result JSON without invoking the canViewExpressEntries permission check applied by the normal dashboard and CSV Export flow. An unauthenticated visitor who knew or discovered an Express entity identifier...

CVE-2026-18120 Missing Authorization in legacy Express entries search endpoint allows disclosure of Express entry data

Concrete CMS before 9.5.3 exposed a legacy Express entry search endpoint that returned entry result JSON without invoking the canViewExpressEntries permission check applied by the normal dashboard and CSV Export flow. An unauthenticated visitor who knew or discovered an Express entity identifier...

CVE-2026-18120

Concrete CMS before 9.5.3 exposed a legacy Express entry search endpoint that returned entry result JSON without invoking the canViewExpressEntries() permission check applied by the normal dashboard and CSV Export flow. An unauthenticated visitor who knew or discovered an Express entity identifie...

CVE-2026-18120 Missing Authorization in legacy Express entries search endpoint allows disclosure of Express entry data

Concrete CMS before 9.5.3 exposed a legacy Express entry search endpoint that returned entry result JSON without invoking the canViewExpressEntries permission check applied by the normal dashboard and CSV Export flow. An unauthenticated visitor who knew or discovered an Express entity identifier...

EUVD-2026-80894

Concrete CMS before 9.5.3 exposed a legacy Express entry search endpoint that returned entry result JSON without invoking the canViewExpressEntries permission check applied by the normal dashboard and CSV Export flow. An unauthenticated visitor who knew or discovered an Express entity identifier...

CVE-2026-18120 Missing Authorization in legacy Express entries search endpoint allows disclosure of Express entry data

Concrete CMS before 9.5.3 exposed a legacy Express entry search endpoint that returned entry result JSON without invoking the canViewExpressEntries permission check applied by the normal dashboard and CSV Export flow. An unauthenticated visitor who knew or discovered an Express entity identifier...

CVE-2026-18120: Missing Authorization

Concrete CMS before 9.5.3 exposed a legacy Express entry search endpoint that returned entry result JSON without invoking the canViewExpressEntries permission check applied by the normal dashboard and CSV Export flow. An unauthenticated visitor who knew or discovered an Express entity identifier...

PT-2026-93870

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.3 Description A legacy Express entry search endpoint returns entry result JSON without invoking the canViewExpressEntries permission check. This allows an unauthenticated visitor who possesses an Express enti...

CVE-2026-18426

Concrete CMS 9.0.0 through 9.5.2 did not enforce a block-level edit-permission check on the Express Form block's control-management actions, which relied solely on CSRF token validation. Because the token is bound to the user and action rather than to a specific block, page, or form, an...

CVE-2026-18423

Concrete CMS 9.0.0 through 9.5.2 is vulnerable to Insecure direct object reference IDOR in the Express saved search preset delete and edit dialogs . An authenticated user holding only view permission on a single Express entity could therefore permanently delete, with no undo, or rename saved sear...

CVE-2026-18426

Concrete CMS versions 9.0.0 through 9.5.2 are affected by a missing authorization flaw in the Express Form block . Control-management actions (add, modify, delete) relied solely on CSRF token validation, but the token is bound only to the user and action—not to a specific block, page, or form. Th...

EUVD-2026-79942

Concrete CMS 9.0.0 through 9.5.2 did not enforce a block-level edit-permission check on the Express Form block's control-management actions, which relied solely on CSRF token validation. Because the token is bound to the user and action rather than to a specific block, page, or form, an...

CVE-2026-18426 Concrete CMS 9.0.0 to 9.5.2 Express Form block missing authorization allows an authenticated editor to modify Express Forms they cannot edit

Concrete CMS 9.0.0 through 9.5.2 did not enforce a block-level edit-permission check on the Express Form block's control-management actions, which relied solely on CSRF token validation. Because the token is bound to the user and action rather than to a specific block, page, or form, an...