CVE-2018-20422: Comsenz Discuzx

High severity, CVSS 8.1. EPSS: 1.3% chance of exploitation in the next 30 days.

Discuz! DiscuzX 3.4, when WeChat login is enabled, allows remote attackers to bypass authentication by leveraging a non-empty #wechat#common_member_wechatmp to gain login access to an account via a plugin.php ac=wxregister request (the attacker does not have control over which account will be accessed).

Affected products

• Comsenz Discuzx: version x3.4 only

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