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      <title>CVE-2026-28403 — Textream Cross-Site WebSocket Hijacking (CSWSH) vulnerability</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-28403</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; f textream&lt;/p&gt;
&lt;p&gt;Textream is a free macOS teleprompter app. Prior to version 1.5.1, the `DirectorServer` WebSocket server (`ws://127.0.0.1:&amp;lt;httpPort+1&amp;gt;`) accepts connections from any origin without validating the HTTP `Origin` header during the WebSocket handshake. A malicious web page visited in the same browser session can silently connect to the local WebSocket server and send arbitrary `DirectorCommand` payloads, allowing full remote control of the teleprompter content. Version 1.5.1 fixes the issue.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; f textream&lt;/p&gt;
&lt;p&gt;Textream is a free macOS teleprompter app. Prior to version 1.5.1, the `DirectorServer` WebSocket server (`ws://127.0.0.1:&amp;lt;httpPort+1&amp;gt;`) accepts connections from any origin without validating the HTTP `Origin` header during the WebSocket handshake. A malicious web page visited in the same browser session can silently connect to the local WebSocket server and send arbitrary `DirectorCommand` payloads, allowing full remote control of the teleprompter content. Version 1.5.1 fixes the issue.&lt;/p&gt;</content:encoded>
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