CVE-2026-63216 Zammad: Stored XSS via unescaped option labels in the object attribute options context UI

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, unsanitized option labels are rendered in the configuration dialogs of AI Agents within Zammad's admin UI. When rendering the list of selected options, the option label is output as raw HTML without escaping. An...

CVE-2026-63216

The Zammad helpdesk system is vulnerable to Stored XSS in versions prior to 7.1.2 due to the rendering of unsanitized option labels in the AI Agents configuration dialogs. The root cause is that option labels are output as raw HTML without proper escaping. An attacker can inject malicious strings...

EUVD-2026-87262

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, unsanitized option labels are rendered in the configuration dialogs of AI Agents within Zammad's admin UI. When rendering the list of selected options, the option label is output as raw HTML without escaping. An...

EUVD-2026-87261

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when the "Automatic account link on initial logon" setting is enabled, Zammad binds an incoming third-party SSO identity to an existing local account by matching the email address the identity provider reports,...

CVE-2026-84458 Zammad: Account takeover via unverified email matching during SSO auto-link

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when the "Automatic account link on initial logon" setting is enabled, Zammad binds an incoming third-party SSO identity to an existing local account by matching the email address the identity provider reports,...

CVE-2026-84458

Prior to version 7.1.2 , the Zammad helpdesk system is vulnerable to an account takeover when the "Automatic account link on initial logon" setting is enabled. The root cause is that Zammad binds incoming third-party (SSO) identities to existing local accounts by matching reported email addresses...

CVE-2026-84458 Zammad: Account takeover via unverified email matching during SSO auto-link

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when the "Automatic account link on initial logon" setting is enabled, Zammad binds an incoming third-party SSO identity to an existing local account by matching the email address the identity provider reports,...

CVE-2026-84458 Zammad: Account takeover via unverified email matching during SSO auto-link

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when the "Automatic account link on initial logon" setting is enabled, Zammad binds an incoming third-party SSO identity to an existing local account by matching the email address the identity provider reports,...

EUVD-2026-87259

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, any authenticated user can call the REST endpoint for getting a tag list and receive the tag names for the given ticket, regardless of whether they have access to that ticket. Tags are an internal categorization...

CVE-2026-84460 Zammad: Missing Authorization in TagsController#list Allows Cross-Object Tag Enumeration

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, any authenticated user can call the REST endpoint for getting a tag list and receive the tag names for the given ticket, regardless of whether they have access to that ticket. Tags are an internal categorization...

CVE-2026-84460

The open-source helpdesk system Zammad is vulnerable to an authorization bypass in the TagsController#list component prior to version 7.1.2 . Any authenticated user can access a REST endpoint to retrieve tag names for specific tickets, even if they lack permission to view those tickets. Because t...

CVE-2026-84460 Zammad: Missing Authorization in TagsController#list Allows Cross-Object Tag Enumeration

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, any authenticated user can call the REST endpoint for getting a tag list and receive the tag names for the given ticket, regardless of whether they have access to that ticket. Tags are an internal categorization...

CVE-2026-84460 Zammad: Missing Authorization in TagsController#list Allows Cross-Object Tag Enumeration

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, any authenticated user can call the REST endpoint for getting a tag list and receive the tag names for the given ticket, regardless of whether they have access to that ticket. Tags are an internal categorization...

EUVD-2026-87258

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, zammad's HTML sanitizer, which blocks remote images in ticket articles and email views, can be bypassed using a shortened URL format that omits the double slash after the scheme for example a shortened HTTP URL...

CVE-2026-63206

The Zammad open source helpdesk system is vulnerable to a remote image tracking bypass in versions prior to 7.1.2 . The root cause is a flaw in the HTML sanitizer , which fails to recognize shortened URL formats that omit the double slash after the scheme (e.g., http:) as remote content. While th...

CVE-2026-63206 Zammad: Remote image tracking bypass via shortened URL scheme

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, zammad's HTML sanitizer, which blocks remote images in ticket articles and email views, can be bypassed using a shortened URL format that omits the double slash after the scheme for example a shortened HTTP URL...

CVE-2026-63206 Zammad: Remote image tracking bypass via shortened URL scheme

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, zammad's HTML sanitizer, which blocks remote images in ticket articles and email views, can be bypassed using a shortened URL format that omits the double slash after the scheme for example a shortened HTTP URL...

CVE-2026-63206 Zammad: Remote image tracking bypass via shortened URL scheme

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, zammad's HTML sanitizer, which blocks remote images in ticket articles and email views, can be bypassed using a shortened URL format that omits the double slash after the scheme for example a shortened HTTP URL...

CVE-2026-63205

In Zammad versions prior to 7.1.2 , a vulnerability exists where users with specific channel admin permissions can access unauthorized attachments. When creating or updating an email signature, the system processes inline images; if an HTML img tag points to an existing attachment, Zammad copies ...

CVE-2026-63205 Zammad: Channel admins can read unauthorized attachments via signature rich-text body

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when creating or updating an email signature, Zammad processes inline images referenced in the signature body. If a signature body contains an HTML img tag pointing to any existing attachment, the system copies th...