CVE-2018-20422

Severity: high (CVSS 8.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-12-24 · updated 2026-06-17
Weakness: CWE-287

Description

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: x3.4

References

https://gitee.com/ComsenzDiscuz/DiscuzX/issues/IPRUI
https://gitee.com/ComsenzDiscuz/DiscuzX/issues/IPRUI

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