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      <title>CVE-2026-11354 — Participants Database &lt;= 2.7.8.3 - Missing Authorization to Unauthenticated Arbitrary Record Update / Sensitive Informa…</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-11354</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; xnau Participants Database&lt;/p&gt;
&lt;p&gt;The Participants Database plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.7.8.3 via the &amp;#39;id&amp;#39; parameter. This makes it possible for unauthenticated attackers to overwrite arbitrary participant records by numeric ID and redirect the private_id-bearing record-access link to an attacker-controlled email address, granting full read and edit access to the victim&amp;#39;s stored personally identifiable information including names, email addresses, phone numbers, and any other fields collected in the participant database. An attacker can harvest a valid nonce with a plain unauthenticated GET request to any page rendering the public signup or record form, then POST action=update with an arbitrary id value to overwrite any record; chaining a subsequent action=retrieve then delivers the private-access link to the attacker-controlled mailbox.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; xnau Participants Database&lt;/p&gt;
&lt;p&gt;The Participants Database plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.7.8.3 via the &amp;#39;id&amp;#39; parameter. This makes it possible for unauthenticated attackers to overwrite arbitrary participant records by numeric ID and redirect the private_id-bearing record-access link to an attacker-controlled email address, granting full read and edit access to the victim&amp;#39;s stored personally identifiable information including names, email addresses, phone numbers, and any other fields collected in the participant database. An attacker can harvest a valid nonce with a plain unauthenticated GET request to any page rendering the public signup or record form, then POST action=update with an arbitrary id value to overwrite any record; chaining a subsequent action=retrieve then delivers the private-access link to the attacker-controlled mailbox.&lt;/p&gt;</content:encoded>
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