EUVD-2026-42550

The Hydra Booking – Appointment Scheduling & Booking Calendar plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 1.2.1 via the /wp-json/hydra-booking/v1/booking/details/id REST endpoint. This is due to the getBookingDetails callback only...

CVE-2026-9576

CVE-2026-9576 affects the Fluent Booking WordPress plugin (versions before 2.1.2). The vulnerability arises from not verifying ownership of the requested group_id before exporting attendees data via the export endpoint, allowing users with at least the Calendar Manager role to access attendees’ P...

CVE-2026-57960

Hi.Events through 1.9.0 public check-in list endpoints use shortid as sole access control, allowing unauthenticated access to retrieve full attendee lists including emails and personal information. Attackers with knowledge of the shortid can call GET /api/public/check-in-lists/shortid/attendees t...

CVE-2026-57960 Hi.Events 1.9.0 - Unauthenticated Attendee PII Exposure via Check-in List short_id

Hi.Events through 1.9.0 public check-in list endpoints use shortid as sole access control, allowing unauthenticated access to retrieve full attendee lists including emails and personal information. Attackers with knowledge of the shortid can call GET /api/public/check-in-lists/shortid/attendees t...

CVE-2026-57960 Hi.Events 1.9.0 - Unauthenticated Attendee PII Exposure via Check-in List short_id

Hi.Events through 1.9.0 public check-in list endpoints use shortid as sole access control, allowing unauthenticated access to retrieve full attendee lists including emails and personal information. Attackers with knowledge of the shortid can call GET /api/public/check-in-lists/shortid/attendees t...

CVE-2026-57960

Hi.Events

EUVD-2026-40145

Hi.Events through 1.9.0 public check-in list endpoints use shortid as sole access control, allowing unauthenticated access to retrieve full attendee lists including emails and personal information. Attackers with knowledge of the shortid can call GET /api/public/check-in-lists/shortid/attendees t...

CVE-2026-45286

Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before 6.2.3, an authenticated user can enumerate users on the same Nextcloud instance by using the Calendar app's endpoint for suggesting attendees. The sharing restrictions, applied t...

CVE-2026-45286

Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before 6.2.3, an authenticated user can enumerate users on the same Nextcloud instance by using the Calendar app's endpoint for suggesting attendees. The sharing restrictions, applied t...

CVE-2026-45286

CVE-2026-45286 affects Nextcloud Open Source Content Collaboration Platform. An authenticated user could enumerate other users on the same instance by abusing the Calendar app’s endpoint for suggesting attendees; standard sharing restrictions did not apply to that endpoint. Impacted versions are ...

CVE-2026-45286 Nextcloud: Calendar app leaked user identifiers via attendee suggestion endpoint

Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before 6.2.3, an authenticated user can enumerate users on the same Nextcloud instance by using the Calendar app's endpoint for suggesting attendees. The sharing restrictions, applied t...

CVE-2026-45286 Nextcloud: Calendar app leaked user identifiers via attendee suggestion endpoint

Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before 6.2.3, an authenticated user can enumerate users on the same Nextcloud instance by using the Calendar app's endpoint for suggesting attendees. The sharing restrictions, applied t...

CVE-2026-45286 Nextcloud: Calendar app leaked user identifiers via attendee suggestion endpoint

Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before 6.2.3, an authenticated user can enumerate users on the same Nextcloud instance by using the Calendar app's endpoint for suggesting attendees. The sharing restrictions, applied t...

Calendar app leaked user identifiers via attendee suggestion endpoint

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PT-2026-23407

Name of the Vulnerable Software and Affected Versions HumHub Calendar module versions prior to 1.8.11 Description The Calendar module for HumHub allows users to create and manage events. A stored cross-site scripting XSS issue exists in the Event Types functionality of the Calendar module for...

CVE-2025-68112

ChurchCRM is an open-source church management system. In versions prior to 6.5.3, a SQL injection vulnerability in ChurchCRM's Event Attendee Editor allows authenticated users to execute arbitrary SQL commands, leading to complete database compromise, administrative credential theft, and potentia...

CVE-2025-68112

ChurchCRM is an open-source church management system. In versions prior to 6.5.3, a SQL injection vulnerability in ChurchCRM's Event Attendee Editor allows authenticated users to execute arbitrary SQL commands, leading to complete database compromise, administrative credential theft, and potentia...

EUVD-2025-203987

ChurchCRM is an open-source church management system. In versions prior to 6.5.3, a SQL injection vulnerability in ChurchCRM's Event Attendee Editor allows authenticated users to execute arbitrary SQL commands, leading to complete database compromise, administrative credential theft, and potentia...

PT-2025-51930

Name of the Vulnerable Software and Affected Versions ChurchCRM versions prior to 6.5.3 Description ChurchCRM is an open-source church management system. A SQL injection flaw exists in the Event Attendee Editor. This allows authenticated users to execute arbitrary SQL commands, potentially leadin...

CVE-2025-13742

Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when name is used in an email template, it will be replaced with the buyer's name for the final email. If the name of the attendee contained HTML or Markdown formatting, this was rendered as HTML i...