CVE-2024-3730
Simple Membership <= 4.4.3 - Authenticated(Contributor+) Stored Cross-Site Scripting via Shortcode
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | wpinsider-1 |
| Product | simple membership |
| Published | Apr 25, 2024 |
| Last Updated | Apr 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for wpinsider-1 simple membership
Be the first to know when new medium vulnerabilities affecting wpinsider-1 simple membership are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
wpinsider-1 / Simple Membership
0 ≤ 4.4.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/63779ab7-ba8b-459d-beb3-a32faf8f4394?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3076221%40simple-membership&new=3076221%40simple-membership&sfp_email=&sfph_mail=#file31
Credits
Thanh Nam Tran