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      <title>CVE-2026-22810 — Joplin: Path traversal in OneNote importer allows overwriting arbitrary files</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-22810</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; laurent22 joplin&lt;/p&gt;
&lt;p&gt;Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions prior to 3.5.7 contain a path traversal vulnerability in the importer which allows overwriting arbitrary files on disk. The OneNote converter does not sanitize the names of embedded files before writing them to disk. As a result, it&amp;#39;s possible for an attacker to create a malicious .one file that includes file names containing ../../, that are then interpreted as part of the target path when extracting attachments from the .one file. This issue has been patched in version 3.5.7.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; laurent22 joplin&lt;/p&gt;
&lt;p&gt;Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions prior to 3.5.7 contain a path traversal vulnerability in the importer which allows overwriting arbitrary files on disk. The OneNote converter does not sanitize the names of embedded files before writing them to disk. As a result, it&amp;#39;s possible for an attacker to create a malicious .one file that includes file names containing ../../, that are then interpreted as part of the target path when extracting attachments from the .one file. This issue has been patched in version 3.5.7.&lt;/p&gt;</content:encoded>
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