What is CVE-2021-4340?

CVE-2021-4340 is a critical-severity vulnerability in Stylemix Directory Listings Wordpress Plugin – Ulisting, classified under SQL Injection. CVSS score: 9.8/10. Published 2023-06-07.

How severe is CVE-2021-4340?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-4340 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SQL Injection in Stylemix Directory Listings Wordpress Plugin – Ulisting

CVE-2021-4340

The uListing plugin for WordPress is vulnerable to generic SQL Injection via the ‘listing_id’ parameter in versions up to, and including, 1.6.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Vulnerability class: SQL Injection

EPSS: 0.012 (64.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Stylemix Directory Listings Wordpress Plugin – Ulisting — versions 0
Stylemixthemes Ulisting

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

20142995/nuclei-templates

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Exploit)

Frequently asked questions

What is CVE-2021-4340?: CVE-2021-4340 is a critical-severity vulnerability in Stylemix Directory Listings Wordpress Plugin – Ulisting, classified under SQL Injection. CVSS score: 9.8/10. Published 2023-06-07.
How severe is CVE-2021-4340?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-4340 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.