What is CVE-2023-4719?

CVE-2023-4719 is a high-severity vulnerability in Simple-Membership-Plugin Simple Membership, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2023-09-06.

How severe is CVE-2023-4719?

High severity. CVSS v3 base score is 7.2 out of 10.

Is CVE-2023-4719 known to be exploited?

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

XSS in Simple-Membership-Plugin Simple Membership

CVE-2023-4719

The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `list_type` parameter in versions up to, and including, 4.3.5 due to insufficient input sanitization and output escaping. Using this vulnerability, unauthenticated attackers could inject arbitrary web scripts into pages that are being executed if they can successfully trick a user into taking an action, such as clicking a malicious link.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (39.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Simple-membership-plugin Simple_membership
Wpinsider-1 Simple Membership — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Product)
security@wordfence.com (Patch)

Frequently asked questions

What is CVE-2023-4719?: CVE-2023-4719 is a high-severity vulnerability in Simple-Membership-Plugin Simple Membership, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2023-09-06.
How severe is CVE-2023-4719?: High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2023-4719 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.