CVE-2021-4381

Name: CVE-2021-4381
Creator: NVD / NIST
Published: 2023-06-07T02:15:15.47+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.40%

Last modified Jun 17, 2026

CVE-2021-4381 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The uListing plugin for WordPress is vulnerable to authorization bypass via wp_route due to missing capability checks, and a missing security nonce, in the StmListingSingleLayout::import_new_layout method in versions up to, and including, 1.6.6. This makes it possible for unauthenticated attackers to change any WordPress option in the database.. EPSS estimates a 1.40% chance of exploitation in the next 30 days.

Description

The uListing plugin for WordPress is vulnerable to authorization bypass via wp_route due to missing capability checks, and a missing security nonce, in the StmListingSingleLayout::import_new_layout method in versions up to, and including, 1.6.6. This makes it possible for unauthenticated attackers to change any WordPress option in the database.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.40%

69.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Stylemixthemes	Ulisting	< 1.7

References

Timeline

Published: Jun 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4381?

How severe is CVE-2021-4381?

CVE-2021-4381 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.40% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4381?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4381?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST