CVE-2023-50376

WordPress Simple Membership Plugin <= 4.3.8 is vulnerable to Unauth. Reflected Cross Site Scripting (XSS)

7.1 High

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in smp7, wp.Insider Simple Membership allows Reflected XSS.This issue affects Simple Membership: from n/a through 4.3.8.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

0.46%Up 0.4 points since Dec 20, 2023

What each source reports

CVE List Score used 7.1

WordPress Simple Membership Plugin <= 4.3.8 is vulnerable to Unauth. Reflected Cross Site Scripting (XSS)

Record: CVE-2023-50376
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2023-55177 7.1

Record: EUVD-2023-55177
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-8cp3-ghqm-6565 7.1

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')...

Record: GHSA-8cp3-ghqm-6565
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

NVD 7.1

Record: CVE-2023-50376
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
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-2023-50376 is a high vulnerability (CVSS 7.1) in Simple-membership-plugin Simple Membership, published December 19, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. No source names a fixed version.