CVE-2024-9511

The FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.2.82 via deserialization of untrusted input in the 'formatResult' function. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code. The vulnerability was partially patched in version 2.2.82.

• CWE-502

• https://plugins.trac.wordpress.org/browser/fluent-smtp/trunk/app/Models/Logger.php#L157
• https://plugins.trac.wordpress.org/changeset/3194359/
• https://plugins.trac.wordpress.org/changeset/3194555/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a3deedc4-b939-4c54-8376-95d3728872d4?source=cve

Published

Nov 23, 2024

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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