CVE-2018-1000773

WordPress version 4.9.8 and earlier contains a CWE-20 Input Validation vulnerability in thumbnail processing that can result in remote code execution due to an incomplete fix for CVE-2017-1000600. This attack appears to be exploitable via thumbnail upload by an authenticated user and may require additional plugins in order to be exploited however this has not been confirmed at this time.

• CWE-20

• http://www.securityfocus.com/bid/105306Third Party Advisory, VDB Entry
• https://www.theregister.co.uk/2018/08/20/php_unserialisation_wordpress_vuln/Third Party Advisory
• https://youtu.be/GePBmsNJw6Y?t=1763Third Party Advisory
• http://www.securityfocus.com/bid/105306Third Party Advisory, VDB Entry
• https://www.theregister.co.uk/2018/08/20/php_unserialisation_wordpress_vuln/Third Party Advisory
• https://youtu.be/GePBmsNJw6Y?t=1763Third Party Advisory

Published

Sep 6, 2018

Last Modified

Jun 17, 2026

Status

Modified

• 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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