Description
WordPress Plugin Ultimate Member-User Profile, Registration, Login, Member Directory, Content Restriction & Membership is prone to a privilege escalation vulnerability. Exploiting this issue may allow attackers to bypass the expected capabilities check and perform otherwise restricted actions; other attacks are also possible. WordPress Plugin Ultimate Member-User Profile, Registration, Login, Member Directory, Content Restriction & Membership version 2.6.6 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 2.6.7 or latest
References
https://github.com/gbrsh/CVE-2023-3460/blob/main/exploit.py
https://blog.wpscan.com/hacking-campaign-actively-exploiting-ultimate-member-plugin/
https://docs.ultimatemember.com/article/1866-security-incident-update-and-recommended-actions
https://plugins.svn.wordpress.org/ultimate-member/trunk/readme.txt