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OpenAdvisories
Medium · 5.4 CVE-2024-3730 EUVD-2024-32304GHSA-wm34-m2ww-gx7j

Simple Membership <= 4.4.3 - Authenticated(Contributor+) Stored Cross-Site Scripting via Shortcode

Published Apr 25, 2024 · Updated Apr 8, 2026 · Assigned by Wordfence

Description

The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'swpm_paypal_subscription_cancel_link' shortcode in all versions up to, and including, 4.4.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

VendorProductAffectedFixed
wpinsider-1 Simple Membership ≤ 4.4.3 —

References