CVE-2024-4383
mediumpriority · track · 22EPSS 0.004 · 37 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
- simple-membership-plugin simple membership< 4.4.6nvdUScpe:2.3:a:simple-membership-plugin:simple_membership:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-4383/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2024-4383cnnvd
- https://plugins.trac.wordpress.org/browser/simple-membership/tags/4.4.3/classes/shortcode-related/class.swpm-shortcodes-handler.php#L228cnnvd
- 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.phpcnnvd
- https://www.wordfence.com/threat-intel/vulnerabilities/id/56fdbf80-8ea2-412a-b166-b7c27de88e70?source=cvecnnvd
- https://plugins.trac.wordpress.org/browser/simple-membership/tags/4.4.3/classes/shortcode-related/class.swpm-shortcodes-handler.php#L228enisa_euvd
- 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.phpenisa_euvd
- https://www.wordfence.com/threat-intel/vulnerabilities/id/56fdbf80-8ea2-412a-b166-b7c27de88e70?source=cveenisa_euvd
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