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Vulnerability record · CVE-2023-3996 · published 20 October 2023

CVE-2023-3996: Armemberplugin armember cross-site scripting vulnerability

Armemberplugin · Armember

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.

4.8 CVSS 3.1 Medium EPSS 0.46% · top 62.9% CWE-79 · Cross-site scripting
4.8CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://plugins.svn.wordpress.org/armember-membership/tags/4.0.2/readme.md Broken Link
https://plugins.svn.wordpress.org/armember-membership/tags/4.0.2/readme.txt Mailing List
https://plugins.trac.wordpress.org/changeset/2988063/armember-membership/trunk/core/classes/class.arm_global_settings.ph
https://plugins.trac.wordpress.org/changeset/2992936/armember-membership/trunk/core/classes/class.arm_global_settings.ph
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2905086%40armember-membership%2Ftrunk&o Patch
https://www.armemberplugin.com Product
https://www.wordfence.com/threat-intel/vulnerabilities/id/c1022ac4-869e-415a-a7c8-3650421608ea?source=cve Third Party Advisory
https://plugins.svn.wordpress.org/armember-membership/tags/4.0.2/readme.md Broken Link
https://plugins.svn.wordpress.org/armember-membership/tags/4.0.2/readme.txt Mailing List
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2905086%40armember-membership%2Ftrunk&o Patch
https://www.armemberplugin.com Product
https://www.wordfence.com/threat-intel/vulnerabilities/id/c1022ac4-869e-415a-a7c8-3650421608ea?source=cve Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-3996), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.