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CVE-2023-4719

MEDIUM 6.1 CVSS 3.1
Published
September 6, 2023
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `list_type` parameter in versions up to, and including, 4.3.5 due to insufficient input sanitization and output escaping. Using this vulnerability, unauthenticated attackers could inject arbitrary web scripts into pages that are being executed if they can successfully trick a user into taking an action, such as clicking a malicious link.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • wpinsider-1 Simple Membership — Up to and including 4.3.5
  • simple-membership-plugin simple_membership — Before 4.3.6

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2962730%40simple-membership&new=2962730%40simple-membership&sfp_email=&sfph_mail= Patch
  • wordpress.org https://wordpress.org/plugins/simple-membership/ Product
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/e4b10172-7e54-4ff8-9fbb-41d160ce49e4?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record