CVE-2021-4343

CRITICAL

WordPress <1.6.6 - Unauthenticated Account Creation

Title source: llm

Description

The Unauthenticated Account Creation plugin for WordPress is vulnerable to Unauthenticated Account Creation in versions up to, and including, 1.6.6. This is due to the stm_listing_register AJAX action function being accessible and taking roles unprotected. This makes it possible for unauthenticated attackers to create accounts, even those with administrator privileges.

References (3)

Core 3

Core References

Exploit

https://blog.nintechnet.com/wordpress-ulisting-plugin-fixed-multiple-critical-vulnerabilities/

Patch

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2456786%40ulisting&new=2456786%40ulisting&sfp_email=&sfph_mail=

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/1c6bf45b-b02d-43bb-b682-7f1ae994e1d3?source=cve

Scores

CVSS v3 9.8

EPSS 0.0140

EPSS Percentile 69.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-862

Status published

Products (2)

stylemix/Directory Listings WordPress plugin – uListing < 1.7

stylemixthemes/ulisting < 1.6.6

Published Jun 07, 2023

Tracked Since Feb 18, 2026