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4.9
MailArchiver Plugin for WordPress Allows Sensitive Data Theft
CVE-2026-2831
Summary
The MailArchiver plugin for WordPress has a security flaw that could allow an attacker with admin access to steal sensitive database information. This issue affects all versions of the plugin up to 4.5.0, and it's essential to update to the latest version to prevent unauthorized data access. If you haven't already, update the plugin to a version higher than 4.5.0 to ensure your site's security.
Original title
The MailArchiver plugin for WordPress is vulnerable to SQL Injection via the ‘logid’ parameter in all versions up to, and including, 4.5.0 due to insufficient escaping on the user supplied paramete...
Original description
The MailArchiver plugin for WordPress is vulnerable to SQL Injection via the ‘logid’ parameter in all versions up to, and including, 4.5.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
nvd CVSS3.1
4.9
Vulnerability type
CWE-89
SQL Injection
Published: 27 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026