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Simple Membership - Security Vulnerability (CVE-2022-2317)

CVE-2022-2317

Vulnerability CVE-2022-2317 PLUGIN simple-membership CRITICAL

The Simple Membership WordPress plugin before 4.1.3 allows user to change their membership at the registration stage due to insufficient checking of a user supplied parameter.

CVE-2022-2317

CRITICAL CVSS 9.8 Published 2022-08-01 Updated 2026-06-17
AI Risk Critical (90/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P1 Immediate
Severity Band CRITICAL
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Components 1
Reference Links 1
AI Risk Engine Critical (90/100)
Exploitability High
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2022-08-01 CVE published and first recorded in the threat feed.
  2. 2026-06-17 Record updated with latest vulnerability metadata.
  3. 2026-04-09 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 218 days ago

AI enriched 218 days ago (2026-04-09 07:17 UTC)

Technical Summary

The Simple Membership WordPress plugin before 4.1.3 allows user to change their membership at the registration stage due to insufficient checking of a user supplied parameter.

Potential Impact

Severity is CRITICAL (CVSS 9.8). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on severity and technical exposure profile.

Primary risk drivers: severity and technical exposure profile

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Simple Membership PLUGIN · simple-membership Affected: < 4.1.3 Fixed in: 4.1.3

Related Vulnerabilities

Browse All Threats

Newest linked vulnerabilities to keep visitors exploring adjacent CVE coverage.

Simple Membership - Security Vulnerability (CVE-2026-88785) CVE-2026-88785 Published 2026-10-11 Simple Membership - Security Vulnerability (CVE-2026-103427) CVE-2026-103427 Published 2026-10-10 Simple Membership - Security Vulnerability (CVE-2026-97337) CVE-2026-97337 Published 2026-10-03 Simple Membership - Security Vulnerability (CVE-2026-74000) CVE-2026-74000 Published 2026-09-17 Simple Membership - Security Vulnerability (CVE-2026-88764) CVE-2026-88764 Published 2026-09-13 Simple Membership - Authentication Bypass (CVE-2026-77194) CVE-2026-77194 Published 2026-09-01

References

What to do about this

Patch immediately Serious, and reachable without meaningful privilege.

Fix it

Update Simple Membership to 4.1.3 or later.

That is the complete fix. Everything below is what protects you in the meantime.

No Hack Halt control meaningfully contains this one — updating is the remedy. We would rather say so than sell you something that will not help.

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Not sure if you are affected?

Scan your site to see whether it runs Simple Membership, and at which version.

Free, no installation, no account. It reads what your site already publishes, then tells you which plugins carry known vulnerabilities and what to do about each one.

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Am I affected by this vulnerability?

You are affected if your site runs Simple Membership. Versions below 4.1.3 are vulnerable; that release and later are not.

How do I fix it?

Update Simple Membership to version 4.1.3 or later. That is the complete fix.

WordPress security that blocks attacks before they land.

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