CVE-2018-20422

HighCVSS 8.1/10Last modified Jun 17, 2026

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).

Metrics

CVSS 3.0 8.1/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-287

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://gitee.com/ComsenzDiscuz/DiscuzX/issues/IPRUIExploit, Issue Tracking, Third Party Advisory
https://gitee.com/ComsenzDiscuz/DiscuzX/issues/IPRUIExploit, Issue Tracking, Third Party Advisory

Timeline

Published: Dec 24, 2018
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2018

CVE-2018-204238.1Discuz! DiscuzX 3.4, when WeChat login is enabled, allows remote attackers to bypass a "disabled registration" setting by adding a non-exist CVE-2018-204245.9Discuz! DiscuzX 3.4, when WeChat login is enabled, allows remote attackers to delete the common_member_wechatmp data structure via an ac=unb CVE-2018-204258.8libming 0.4.8 has a NULL pointer dereference in the pushdup function of the decompile.c file.CVE-2018-204268.8libming 0.4.8 has a NULL pointer dereference in the newVar3 function of the decompile.c file, a different vulnerability than CVE-2018-7866.CVE-2018-204278.8libming 0.4.8 has a NULL pointer dereference in the getInt function of the decompile.c file, a different vulnerability than CVE-2018-9132.CVE-2018-204288.8libming 0.4.8 has a NULL pointer dereference in the strlenext function of the decompile.c file, a different vulnerability than CVE-2018-7874 CVE-2018-204298.8libming 0.4.8 has a NULL pointer dereference in the getName function of the decompile.c file, a different vulnerability than CVE-2018-7872 a CVE-2018-204306.5GNU Libextractor through 1.8 has an out-of-bounds read vulnerability in the function history_extract() in plugins/ole2_extractor.c, related CVE-2018-204316.5GNU Libextractor through 1.8 has a NULL Pointer Dereference vulnerability in the function process_metadata() in plugins/ole2_extractor.c.CVE-2018-204329.8D-Link COVR-2600R and COVR-3902 Kit before 1.01b05Beta01 use hardcoded credentials for telnet connection, which allows unauthenticated attac CVE-2018-204339.8c3p0 0.9.5.2 allows XXE in extractXmlConfigFromInputStream in com/mchange/v2/c3p0/cfg/C3P0ConfigXmlUtils.java during initialization.CVE-2018-204349.8LibreNMS 1.46 allows remote attackers to execute arbitrary OS commands by using the $_POST['community'] parameter to html/pages/addhost.inc.