CVE-2021-4345

uListing <= 1.6.6 - Unauthenticated Arbitrary Roles and Capabilities Creation/Deletion

6.5 Medium

The uListing plugin for WordPress is vulnerable to authorization bypass due to missing capability and nonce checks on the UlistingUserRole::save_role_api method in versions up to, and including, 1.6.6. This makes it possible for unauthenticated attackers to remove or add roles, and add capabilities.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.73%Up 0.7 points since Jun 7, 2023

What each source reports

CVE List Score used 6.5

uListing <= 1.6.6 - Unauthenticated Arbitrary Roles and Capabilities Creation/Deletion

Record: CVE-2021-4345
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

EUVDEUVD-2021-34172 6.5

Record: EUVD-2021-34172
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-2r3p-vm57-h777 6.5

The uListing plugin for WordPress is vulnerable to authorization bypass due to missing capability...

Record: GHSA-2r3p-vm57-h777
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

NVD 6.5

Record: CVE-2021-4345
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-4345 is a medium vulnerability (CVSS 6.5) in Stylemixthemes Ulisting, published June 7, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.73%, the 54th percentile. No source names a fixed version.