WordPress plugin
Simple Membership security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 39 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical1
- High12
- Medium25
- Low1
All Simple Membership vulnerabilities
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Simple Membership: common questions
Does Simple Membership have known vulnerabilities?
Yes. VulnCrest Radar lists 39 known vulnerabilities in Simple Membership: 1 critical, 12 high, 25 medium, 1 low. None are known to affect version null.
How do I check which version of Simple Membership I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Simple Membership vulnerability?
CVE-2026-103427, published Oct 9, 2026: Simple Membership <= 4.8.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Country Field. Severity: Medium (CVSS 6.4).
Is any Simple Membership vulnerability listed in CISA KEV?
No. None of the known Simple Membership vulnerabilities is currently listed in the CISA KEV catalog.