lib/crud/userprocess.php in rConfig 3.9.x before 3.9.7 has an authentication bypass, leading to administrator account creation. This issue has been fixed in 3.9.7.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13638
Reference (s):
- https://theguly.github.io/2020/09/rconfig-3.9.4-multiple-vulnerabilities/