What’s Vulnerable › Vulnerabilities
CVE-2023-3996: ARMember Lite - Membership Plugin <= 4.0.16 - Authenticated (Administrator+) Stored Cross-Site Scripting
- Severity: medium (CVSS 4.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-10-20 · updated 2026-06-17
- Weakness: CWE-79
Description
The ARMember Lite - Membership Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 4.0.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Affected products
- reputeinfosystems ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup: through 4.0.14
References
- https://plugins.svn.wordpress.org/armember-membership/tags/4.0.2/readme.md
- https://plugins.svn.wordpress.org/armember-membership/tags/4.0.2/readme.txt
- https://plugins.trac.wordpress.org/changeset/2988063/armember-membership/trunk/core/classes/class.arm_global_settings.php
- https://plugins.trac.wordpress.org/changeset/2992936/armember-membership/trunk/core/classes/class.arm_global_settings.php
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2905086%40armember-membership%2Ftrunk&old=2885708%40armember-membership%2Ftrunk&sfp_email=&sfph_mail=
- https://www.armemberplugin.com
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c1022ac4-869e-415a-a7c8-3650421608ea?source=cve
- https://plugins.svn.wordpress.org/armember-membership/tags/4.0.2/readme.md
- https://plugins.svn.wordpress.org/armember-membership/tags/4.0.2/readme.txt
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2905086%40armember-membership%2Ftrunk&old=2885708%40armember-membership%2Ftrunk&sfp_email=&sfph_mail=
- https://www.armemberplugin.com
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c1022ac4-869e-415a-a7c8-3650421608ea?source=cve
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