The Ultimate Member WordPress plugin before 2.6.7 does not prevent visitors from creating user accounts with arbitrary capabilities, effectively allowing attackers to create administrator accounts at will. This is actively being exploited in the wild.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HUltimatemember Ultimate Member
APPUltimatemember< 2.6.7
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CHECK WITH VENDOR
No clear patch data available. Check vendor references.
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The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Pl...