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Medium severity · published May 9, 2024
CVE-2024-4383
Simple Membership <= 4.4.5 - Authenticated(Contributor+) Stored Cross-Site Scripting via Shortcode
5.4
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SM
Simple Membership · wpinsider-1
through 4.4.5 · source: vendor, NVD
Affected product
SM
Simple Membership
wpinsider-1
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-4383
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-4383
Product
https://plugins.trac.wordpress.org/browser/simple-membership/tags/4.4.3/classes/shortcode-related/class.swpm-shortcodes-handler.php#L228
Patch
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
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/56fdbf80-8ea2-412a-b166-b7c27de88e70?source=cve
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