EUVD-2026-20562

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the used endpoint for ticket creation was missing authorization if the related parameter for adding links is used. This vulnerability is fixed in 7.0.1 and 6.5.4...

CVE-2026-34722 Zammad is missing authorization in ticket create endpoint

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the used endpoint for ticket creation was missing authorization if the related parameter for adding links is used. This vulnerability is fixed in 7.0.1 and 6.5.4...

CVE-2026-34722 Zammad is missing authorization in ticket create endpoint

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the used endpoint for ticket creation was missing authorization if the related parameter for adding links is used. This vulnerability is fixed in 7.0.1 and 6.5.4...

CVE-2026-34722

CVE-2026-34722 affects the web-based helpdesk system Zammad . Prior to versions 7.0.1 and 6.5.4 , the endpoint used for ticket creation could accept a related parameter for adding links without proper authorization, exposing an access control issue. The vulnerability is fixed in the patched relea...

EUVD-2026-20558

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the HTML sanitizer for ticket articles was missing proper sanitization of data: ... URI schemes, resulting in storing such malicious content in the database of the Zammad instance. The Zammad GUI is...

CVE-2026-34718 Zammad improperly neutralizes of script-related HTML tags in ticket articles

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the HTML sanitizer for ticket articles was missing proper sanitization of data: ... URI schemes, resulting in storing such malicious content in the database of the Zammad instance. The Zammad GUI is...

CVE-2026-34718 Zammad improperly neutralizes of script-related HTML tags in ticket articles

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the HTML sanitizer for ticket articles was missing proper sanitization of data: ... URI schemes, resulting in storing such malicious content in the database of the Zammad instance. The Zammad GUI is...

CVE-2026-34718

CVE-2026-34718 affects Zammad, a web-based open source helpdesk system. The vulnerability stems from improper sanitization in the HTML sanitizer for ticket articles, which failed to neutralize certain data URI schemes, allowing malicious content to be stored in the database. The issue is mitigate...

CVE-2026-34248 Zammad has an information disclosure in ticket detail view of customers in shared organizations

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations means they can see each other's tickets could see fields which are not intended for customers - including fields not intended for them at all e.g. priority, custom ticket attribut...

CVE-2026-34248 Zammad has an information disclosure in ticket detail view of customers in shared organizations

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations means they can see each other's tickets could see fields which are not intended for customers - including fields not intended for them at all e.g. priority, custom ticket attribut...

CVE-2026-34248

Zammad (web-based helpdesk) prior to 7.0.1 allowed customers in a shared organization to view fields not intended for customers (e.g., priority, internal ticket attributes) in the ticket detail view when opening a ticket from another user in the same shared org. The root cause is exposure of inte...

CVE-2026-34248 Zammad has an information disclosure in ticket detail view of customers in shared organizations

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations means they can see each other's tickets could see fields which are not intended for customers - including fields not intended for them at all e.g. priority, custom ticket attribut...

GHSA-WR8Q-C73G-M7GP pretix: API leaks check-in data between events of the same organizer

A new API endpoint introduced in pretix 2025 that is supposed to return all check-in events of a specific event in fact returns all check-in events belonging to the respective organizer. This allows an API consumer to access information for all other events under the same organizer, even those th...

EUVD-2026-20463

A new API endpoint introduced in pretix 2025 that is supposed to return all check-in events of a specific event in fact returns all check-in events belonging to the respective organizer. This allows an API consumer to access information for all other events under the same organizer, even those th...

pretix: API leaks check-in data between events of the same organizer

A new API endpoint introduced in pretix 2025 that is supposed to return all check-in events of a specific event in fact returns all check-in events belonging to the respective organizer. This allows an API consumer to access information for all other events under the same organizer, even those th...

PYSEC-2026-111

A new API endpoint introduced in pretix 2025 that is supposed to return all check-in events of a specific event in fact returns all check-in events belonging to the respective organizer. This allows an API consumer to access information for all other events under the same organizer, even those th...

PYSEC-2026-111

A new API endpoint introduced in pretix 2025 that is supposed to return all check-in events of a specific event in fact returns all check-in events belonging to the respective organizer. This allows an API consumer to access information for all other events under the same organizer, even those th...

Improper Isolation or Compartmentalization

Overview pretix is a Reinventing presales, one ticket at a time Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization in the check-in events endpoint. An attacker can access sensitive information related to all check-in events under the same organizer,...

CVE-2026-5600

A new API endpoint introduced in pretix 2025 that is supposed to return all check-in events of a specific event in fact returns all check-in events belonging to the respective organizer. This allows an API consumer to access information for all other events under the same organizer, even those th...

CVE-2026-5600

A new API endpoint introduced in pretix 2025 that is supposed to return all check-in events of a specific event in fact returns all check-in events belonging to the respective organizer. This allows an API consumer to access information for all other events under the same organizer, even those th...