Simple MembershipWordPress extension · Simple Membership Plugin
CVE-2023-41956
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper Authentication vulnerability in smp7, wp.Insider Simple Membership.This issue affects Simple Membership: from n/a through 4.3.4.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · low confidenceImproper Authentication vulnerability in the Simple Membership WordPress plugin (versions through 4.3.4). The vulnerability allows attackers to bypass authentication mechanisms, likely through a flaw in the membership/login validation logic, potentially granting unauthorized access to protected content or administrative functions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Simple MembershipWordPress extension
< 4.3.5CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check installed Simple Membership plugin versionNavigate to WordPress admin dashboard > Plugins > Installed Plugins, locate 'Simple Membership' or 'Simple Membership Plugin', and note the version number displayedAffected if Version is 4.3.4 or lower (any version through 4.3.4)
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Verify plugin is activeIn WordPress admin > Plugins, confirm the Simple Membership plugin shows as 'Active'Affected if Plugin is active and version is below 4.3.5
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Inspect membership endpoints accessibilityAttempt to access common membership-related URLs (e.g., /wp-login.php, /?swpm-login=1, or custom membership page URLs) without valid credentials to test if authentication is being enforcedAffected if Authentication can be bypassed or unauthenticated access is granted to protected membership content
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Review authentication logs for unauthorized accessCheck WordPress debug logs (wp-content/debug.log) or server access logs for suspicious login attempts, unusual IP addresses, or failed authentication patterns around membership functionsAffected if Logs show authentication bypass attempts or unauthorized access to membership functionality
You are affected if the Simple Membership plugin version is 4.3.4 or lower and the plugin is currently active on your WordPress site.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped4.3.5
Update Simple Membership plugin to the latest version (beyond 4.3.4) once available. Review authentication logs for suspicious access patterns and ensure all membership-related endpoints are not accessible without proper credentials.
Simple Membership version 4.3.5
- 1. Backup your WordPress site before making any changes
- 2. Navigate to Plugins > Installed Plugins in your WordPress admin dashboard
- 3. Locate the Simple Membership plugin in the list
- 4. If an update is available, click 'Update Now' to update to the latest version (4.3.5)
- 5. Alternatively, download version 4.3.5 from the WordPress plugin repository or the vendor and upload it manually via Plugins > Add New > Upload Plugin
- 6. After updating, verify the plugin version shows 4.3.5
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Simple Membership
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,096.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-41956 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-41956 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data