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TI-2023-04347 Aliases CVE-2023-4719GHSA-fwcj-v244-qf8f

Simple Membership <= 4.3.5 - Reflected Cross-Site Scripting

Priority LOW 38CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00573 47th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wpinsider-1Simple Membershipup to 4.3.5—No fix listedCNA
  • Simple Membership Vendorwpinsider-1 Affected up to 4.3.5 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:simple-membership-plugin:simple_membership:*:*:*:*:*:wordpress:*:*before 4.3.6Vulnerablewpinsider-1
  • cpe:2.3:a:simple-membership-plugin:simple_membership:*:*:*:*:*:wordpress:*:* Versions before 4.3.6 Vulnerable ·wpinsider-1

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-4719
  2. 2026-10-03 Alias added: GHSA-fwcj-v244-qf8f

References

Patch 1

Advisory 1

Other 1

  • TI-2022-04084 Simple Membership < 4.2.2 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
  • TI-2023-22342 WordPress Simple Membership plugin <= 4.3.4 - Unauthenticated Membership Role Privilege Escalation vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-02140 Simple Membership < 4.1.3 - Unauthenticated Membership Privilege Escalation CVSS 3.1CRITICAL 9.8
  • TI-2019-10675 The Simple Membership plugin before 3.8.5 for WordPress has CSRF affecting the Bulk Operation section. CVSS 3.0HIGH 8.8
  • TI-2023-22341 WordPress Simple Membership plugin <= 4.3.4 - Authenticated Account Takeover vulnerability CVSS 3.1HIGH 8.8
  • TI-2024-10273 Simple Membership <= 4.5.5 - Exposure of Private Personal Information to an Unauthorized Actor CVSS 3.1HIGH 7.5
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences