CVE-2021-4339 - CVE House
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Status published High CVE-2021-4339

uListing <= 1.6.6 - Unauthenticated Information Disclosure

Vulnerability Description

The uListing plugin for WordPress is vulnerable to authorization bypass due to a missing capability check in the "ulisting/includes/route.php" file on the /1/api/ulisting-user/search REST-API route in versions up to, and including, 1.6.6. This makes it possible for unauthenticated attackers to retrieve the list of all users and their email address in the database.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Jerome Bruandet

Affected Vendor

Affected Software

Directory Listings WordPress plugin – uListing
Vulnerable Versions:
0

Timeline

Official Publish: June 7th, 2023
Last Modified: April 8th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)