Description
WordPress Plugin Gmail SMTP is prone to an arbitrary file disclosure vulnerability because it fails to properly verify user-supplied input. An attacker can exploit this vulnerability to view local files in the context of the web server process, which may aid in launching further attacks. WordPress Plugin Gmail SMTP version 1.1.0 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.1.1 or latest
References
https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md
https://plugins.svn.wordpress.org/gmail-smtp/trunk/readme.txt
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