Exploit for Cross-site Scripting in Concretecms Concrete_Cms

CVE-2026-18116 Stored XSS via Calendar Event Name to Admin...

Exploit for Cross-site Scripting in Concretecms Concrete_Cms

CVE-2026-18116 Stored XSS via Calendar Event Name to Admin...

Concrete CMS 9.5.2 Calendar Event Name Cross Site Scripting

Concrete CMS versions 8.3.0 through 9.5.2 contain a stored cross site scripting vulnerability in calendar event names that executes when an administrator views a workflow approval notification. https://packetstorm.news/download/235625...

EUVD-2026-78202

Concrete CMS 8.3.0 to 9.5.2 stored calendar event names without sanitization and rendered them without HTML escaping in the workflow approval and deletion notifications shown in the dashboard "Waiting For Me" block. A registered user permitted to add events to a calendar governed by an approval...

CVE-2026-15402: Improper Neutralization of Input During Web Page Generation

The Eventin – Event Calendar, Event Registration, Tickets & Booking AI Powered plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'etnsheduleobjective' scheduleslot Parameter in all versions up to, and including, 4.1.23 due to insufficient input sanitization and output escaping...

CVE-2026-18116 Concrete CMS 8.3.0 to 9.5.2 is vulnerable to Stored XSS in Calendar Event Name via Workflow Approval Notifications

Concrete CMS 8.3.0 to 9.5.2 stored calendar event names without sanitization and rendered them without HTML escaping in the workflow approval and deletion notifications shown in the dashboard "Waiting For Me" block. A registered user permitted to add events to a calendar governed by an approval...

CVE-2026-18116 Concrete CMS 8.3.0 to 9.5.2 is vulnerable to Stored XSS in Calendar Event Name via Workflow Approval Notifications

Concrete CMS 8.3.0 to 9.5.2 stored calendar event names without sanitization and rendered them without HTML escaping in the workflow approval and deletion notifications shown in the dashboard "Waiting For Me" block. A registered user permitted to add events to a calendar governed by an approval...

CVE-2026-18116 Concrete CMS 8.3.0 to 9.5.2 is vulnerable to Stored XSS in Calendar Event Name via Workflow Approval Notifications

Concrete CMS 8.3.0 to 9.5.2 stored calendar event names without sanitization and rendered them without HTML escaping in the workflow approval and deletion notifications shown in the dashboard "Waiting For Me" block. A registered user permitted to add events to a calendar governed by an approval...

CVE-2026-18116: Improper Neutralization of Input During Web Page Generation

Concrete CMS 8.3.0 to 9.5.2 stored calendar event names without sanitization and rendered them without HTML escaping in the workflow approval and deletion notifications shown in the dashboard "Waiting For Me" block. A registered user permitted to add events to a calendar governed by an approval...

CVE-2026-68526

Concrete CMS before 9.5.3 did not validate an anti-CSRF token in the Calendar event duplicate dialog controller concrete/controllers/dialog/event/duplicate.php submit action, which duplicated a calendar event after checking only canAccess and the per-resource canAddCalendarEvent permission, so a...

CVE-2026-68526

Concrete CMS before 9.5.3 is affected by a missing anti-CSRF token validation in the Calendar event duplicate dialog controller (concrete/controllers/dialog/event/duplicate.php), specifically in its submit() action. The action only checked canAccess() and the per-resource canAddCalendarEvent() pe...

CVE-2026-68526 Concrete CMS before 9.5.3 is vulnerable to CSRF in the Calendar event duplicate dialog controller

Concrete CMS before 9.5.3 did not validate an anti-CSRF token in the Calendar event duplicate dialog controller concrete/controllers/dialog/event/duplicate.php submit action, which duplicated a calendar event after checking only canAccess and the per-resource canAddCalendarEvent permission, so a...

CVE-2026-68526 Concrete CMS before 9.5.3 is vulnerable to CSRF in the Calendar event duplicate dialog controller

Concrete CMS before 9.5.3 did not validate an anti-CSRF token in the Calendar event duplicate dialog controller concrete/controllers/dialog/event/duplicate.php submit action, which duplicated a calendar event after checking only canAccess and the per-resource canAddCalendarEvent permission, so a...

CVE-2026-68527: Authorization Bypass Through User-Controlled Key

Concrete CMS versions 8.3.0 through 9.5.2 are vulnerable to an authorization bypass in the Calendar event edit dialog concrete/controllers/dialog/event/edit.php. The dialog checked permissions against the calendar identifier supplied in the request rather than the calendar owning the targeted eve...

PT-2026-89540

Concrete CMS versions 8.3.0 through 9.5.2 are vulnerable to an authorization bypass in the Calendar event edit dialog concrete/controllers/dialog/event/edit.php. The dialog checked permissions against the calendar identifier supplied in the request rather than the calendar owning the targeted eve...

CVE-2026-15667: Improper Control of Filename for Include/Require Statement in PHP Program

The Eventin – Event Calendar, Event Registration, Tickets & Booking AI Powered plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.1.22 via the 'eventlayout' parameter parameter. This makes it possible for authenticated attackers, with...

CVE-2026-15398: Undefined Security Weakness

Rejected reason: REJECT DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2026-82223 Reason: This candidate is a reservation duplicate of CVE-2026-82223. Notes: All CVE users should reference CVE-2026-82223 instead of this candidate. All references and descriptions in this candidate have been...

CVE-2026-15406: Improper Control of Filename for Include/Require Statement in PHP Program

The Eventin – Event Calendar, Event Registration, Tickets & Booking AI Powered plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.1.22 via the 'eventlayout' parameter parameter. This makes it possible for authenticated attackers, with custom-level...

CVE-2026-11821: Missing Authorization

The Eventin – Event Calendar, Event Registration, Tickets & Booking AI Powered plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.1.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it...

CVE-2026-45122

MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not validate moderation permissions for the destination calendar when moving events. A user with moderation permission for the source calendar can move an event to a calendar where the user has only viewing...