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      <title>CVE-2026-84464 — Zammad: IDOR in External Data Source rendering exposes ticket, user, group, and organization data</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-84464</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; zammad&lt;/p&gt;
&lt;p&gt;Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, zammad&amp;#39;s External Data Source feature, used to look up records from an external system, did not properly verify whether a user was allowed to see a specific ticket, user, group, or organization before including its details in a request to that external system. An authenticated user, including one with only basic customer access, could exploit this by referencing another record&amp;#39;s ID, and thereby view details of tickets, customer accounts, teams, or organizations that did not belong to them. This issue is fixed in version 7.1.2.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; zammad&lt;/p&gt;
&lt;p&gt;Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, zammad&amp;#39;s External Data Source feature, used to look up records from an external system, did not properly verify whether a user was allowed to see a specific ticket, user, group, or organization before including its details in a request to that external system. An authenticated user, including one with only basic customer access, could exploit this by referencing another record&amp;#39;s ID, and thereby view details of tickets, customer accounts, teams, or organizations that did not belong to them. This issue is fixed in version 7.1.2.&lt;/p&gt;</content:encoded>
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