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OpenAdvisories
High · 7.2 CVE-2023-4719 EUVD-2023-54567GHSA-fwcj-v244-qf8f

Simple Membership <= 4.3.5 - Reflected Cross-Site Scripting

Published Sep 6, 2023 · Updated Apr 8, 2026 · Assigned by Wordfence

Description

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.

Affected products

VendorProductAffectedFixed
wpinsider-1 Simple Membership ≤ 4.3.5 —

References