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TI-2022-04084 Aliases CVE-2022-4469GHSA-2j6x-6qc7-3mw5

Simple Membership < 4.2.2 - Contributor+ Stored XSS

Priority MEDIUM 58Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The Simple Membership WordPress plugin before 4.2.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admin.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00539 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Simple Membership (Unknown): 4.2.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
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
UnknownSimple Membershipbefore 4.2.24.2.2Patch availableCNA
  • Simple Membership VendorUnknown Affected before 4.2.2 Fixed in 4.2.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:simple-membership-plugin:simple_membership:*:*:*:*:*:wordpress:*:*before 4.2.2Vulnerablewpinsider-1
  • cpe:2.3:a:simple-membership-plugin:simple_membership:*:*:*:*:*:wordpress:*:* Versions before 4.2.2 Vulnerable ·wpinsider-1

Remediation

  • Fix · CNA Simple Membership (Unknown) Fixed in 4.2.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-4469
  2. 2026-10-03 Alias added: GHSA-2j6x-6qc7-3mw5

References

Exploit 1

  • 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
  • TI-2022-02098 Simple Membership < 4.1.3 - Membership Privilege Escalation CVSS 3.1HIGH 8.8
See all 19 →

Sources

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