Vulnerability · Published May 9, 2024 · Assigned by Wordfence
CVE-2024-4383Simple Membership <= 4.4.5 - Authenticated(Contributor+) Stored Cross-Site Scripting via Shortcode
Medium 6.4
In plain English
A medium-severity cross-site scripting in Simple Membership from wpinsider-1. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Official 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, 4.4.5 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| wpinsider-1 | Simple Membership | 0 – through 4.4.5 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/56fdbf80-8ea2-412a-b166-b7c27de88e70?source=cve
- https://plugins.trac.wordpress.org/browser/simple-membership/tags/4.4.3/classes/shortcode-related/class.swpm-shortcodes-handler.php#L228
- https://plugins.trac.wordpress.org/changeset/3081024/simple-membership/trunk/classes/shortcode-related/class.swpm-shortcodes-handler.php?old=3010737&old_path=%2Fsimple-membership%2Ftrunk%2Fclasses%2Fshortcode-related%2Fclass.swpm-shortcodes-handler.php