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      <title>CVE-2026-12483 — LearnDash LMS &lt;= 5.1.5 - Authenticated (Subscriber+) Arbitrary File Upload via Assignment Upload Handler</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-12483</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; StellarWP LearnDash LMS&lt;/p&gt;
&lt;p&gt;The LearnDash LMS plugin for WordPress is vulnerable to Unrestricted File Type Upload in versions up to and including 5.1.5. This is due to insufficient input validation in the &amp;#39;learndash_fileupload_process&amp;#39; function, which iterates through an entire array and validates only the first file. This makes it possible for authenticated attackers, with subscriber-level access and above who are enrolled in a course with assignment uploads enabled, to upload arbitrary disallowed files, including PHP files, to the server&amp;#39;s wp-content/uploads/learndash/assignments/ directory. The uploaded files can only be used for Remote Code Execution if default server configurations have been changed to allow for execution.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; StellarWP LearnDash LMS&lt;/p&gt;
&lt;p&gt;The LearnDash LMS plugin for WordPress is vulnerable to Unrestricted File Type Upload in versions up to and including 5.1.5. This is due to insufficient input validation in the &amp;#39;learndash_fileupload_process&amp;#39; function, which iterates through an entire array and validates only the first file. This makes it possible for authenticated attackers, with subscriber-level access and above who are enrolled in a course with assignment uploads enabled, to upload arbitrary disallowed files, including PHP files, to the server&amp;#39;s wp-content/uploads/learndash/assignments/ directory. The uploaded files can only be used for Remote Code Execution if default server configurations have been changed to allow for execution.&lt;/p&gt;</content:encoded>
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