CVE-2018-20423: Comsenz Discuzx

High severity, CVSS 8.1. EPSS: 1.2% chance of exploitation in the next 30 days.

Discuz! DiscuzX 3.4, when WeChat login is enabled, allows remote attackers to bypass a "disabled registration" setting by adding a non-existing wxopenid value to the plugin.php ac=wxregister query string.

Affected products

• Comsenz Discuzx: version x3.4 only

Published 2018-12-24. Last modified 2026-06-17.