Description
WordPress Plugin Stop User Enumeration is prone to a user enumeration vulnerability. An attacker may leverage this issue to disclose certain sensitive information and subsequently enumerate valid usernames via the REST API which may aid in launching further attacks. WordPress Plugin Stop User Enumeration version 1.3.8 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.3.9 or latest
References
https://security.dxw.com/advisories/stop-user-enumeration-rest-api/
http://seclists.org/fulldisclosure/2017/Jul/67
https://plugins.svn.wordpress.org/stop-user-enumeration/trunk/readme.txt
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WordPress 3.7.x Multiple Vulnerabilities (3.7 - 3.7.20)
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