CVE-2026-81916 Incorrect Authorization in the Concrete CMS Express Entries Dashboard below version 9.5.3 Allows Entry Creation in an Unauthorized Object

Concrete CMS before 9.5.3 evaluated the authorization check for an Express entry submission against the entity of the posted form rather than the entity identified by the dashboard route. As a result, a user permitted to add entries to one Express object could create entries in a different Expres...

CVE-2026-81916 Incorrect Authorization in the Concrete CMS Express Entries Dashboard below version 9.5.3 Allows Entry Creation in an Unauthorized Object

Concrete CMS before 9.5.3 evaluated the authorization check for an Express entry submission against the entity of the posted form rather than the entity identified by the dashboard route. As a result, a user permitted to add entries to one Express object could create entries in a different Expres...

EUVD-2026-76687

Concrete CMS before 9.5.3 evaluated the authorization check for an Express entry submission against the entity of the posted form rather than the entity identified by the dashboard route. As a result, a user permitted to add entries to one Express object could create entries in a different Expres...

CVE-2026-81916

Concrete CMS before 9.5.3 contains an authorization bypass in the Express entry submission flow. The dashboard submit route resolved the target entity from an attacker-controlled route ID, while the permission check validated the independently posted form's entity — the two were never compared. A...

CVE-2026-18122

Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization; the Concrete CMS REST API's Express entry collection endpoint disabled the per-entry view permission check. An OAuth token with read scope for an Express entity could enumerate...

CVE-2026-18122

Concrete CMS versions 9.2.0 through 9.5.2 contain a Missing Authorization flaw in the Express REST API list endpoint . The Express entry collection endpoint disabled the per-entry view permission check, allowing an OAuth token with read scope for an Express entity to enumerate entries the user co...

CVE-2026-18122 Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization

Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization; the Concrete CMS REST API's Express entry collection endpoint disabled the per-entry view permission check. An OAuth token with read scope for an Express entity could enumerate...

CVE-2026-18122 Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization

Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization; the Concrete CMS REST API's Express entry collection endpoint disabled the per-entry view permission check. An OAuth token with read scope for an Express entity could enumerate...

CVE-2026-18122 Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization

Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization; the Concrete CMS REST API's Express entry collection endpoint disabled the per-entry view permission check. An OAuth token with read scope for an Express entity could enumerate...

EUVD-2026-76161

Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization; the Concrete CMS REST API's Express entry collection endpoint disabled the per-entry view permission check. An OAuth token with read scope for an Express entity could enumerate...

CVE-2026-87776

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

EUVD-2026-76029

hbs is an Express view engine wrapper for Handlebars. Version 4.3.0 can crash the Node.js process during output escaping when an async helper, registered with registerAsyncHelper, resolves to an object whose toHTML property is truthy but not callable. Handlebars escapeExpression calls the toHTML...

CVE-2026-87123

hbs is an Express view engine wrapper for Handlebars. In version 4.3.0 , an unhandled TypeError is thrown during output escaping when an async helper (registered via registerAsyncHelper) resolves to an object whose toHTML property is truthy but not callable. Because the async substitution execute...

WordPress WP Express Checkout plugin < 2.4.9 - Unauthenticated Payment Bypass via wpec_process_payment vulnerability

Unauthenticated Payment Bypass via wpecprocesspayment vulnerability discovered by Amity Gilmour in WordPress Plugin WP Express Checkout Accept PayPal Payments versions 2.4.9...

PT-2026-89996

Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization; the Concrete CMS REST API's Express entry collection endpoint disabled the per-entry view permission check. An OAuth token with read scope for an Express entity could enumerate...

CVE-2026-81907: Cross-Site Request Forgery (CSRF)

Concrete CMS 9.5.2 and below is vulnerable to Cross-Site Request Forgery CSRF in the Express "Clear Entries" function POST /index.php/dashboard/system/express/entities/deleteentries because the controller records but does not enforce a failed CSRF token check, allowing the destructive operation t...

CVE-2026-87776: Missing Release of Memory after Effective Lifetime

compression is a Node.js and Express compression middleware. In versions before 1.8.2, when a client aborts the connection while a compressed response is still being sent, the zlib stream created to compress that response is never destroyed, so each aborted compressed response leaks its native zl...

CVE-2026-18122: Missing Authorization

Concrete CMS 9.2.0 to 9.5.2 Express REST API list endpoint exposes restricted Express entries via Missing Authorization; the Concrete CMS REST API's Express entry collection endpoint disabled the per-entry view permission check. An OAuth token with read scope for an Express entity could enumerate...

PT-2026-90496

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.3 Description Cross-Site Request Forgery CSRF occurs in the Express Clear Entries function. The issue exists because the controller records a failed CSRF token check but does not enforce it, allowing...

CVE-2026-81916: Missing Authorization

Concrete CMS before 9.5.3 evaluated the authorization check for an Express entry submission against the entity of the posted form rather than the entity identified by the dashboard route. As a result, a user permitted to add entries to one Express object could create entries in a different Expres...