CVE-2026-57327
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 · uneditedSubscriber Broken Access Control in MainWP <= 6.1.1 versions.
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 · moderate confidenceBroken Access Control vulnerability in MainWP WordPress plugin allows Subscriber role users to access functionality beyond their intended permissions, enabling privilege escalation. The vulnerability exists in versions up to and including 6.1.1 where proper role-based access control checks are missing or insufficient.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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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Confirm MainWP plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'MainWP' or check the wp-content/plugins/ directory for a mainwp folder. Also verify the plugin is active.Affected if MainWP plugin is not installed or not active - then not affected by this specific vulnerability
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Determine installed MainWP versionIn WordPress admin Plugins list, find MainWP and note the version number displayed. Alternatively, open the mainwp.php file in wp-content/plugins/mainwp/ and look for the 'Version:' header in the plugin comments at the top of the file.Affected if Version is 6.1.1 or lower - the vulnerable version range
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Check for Subscriber role usersIn WordPress admin, go to Users > All Users and review the Role column. Look for any users assigned the 'Subscriber' role. Also check if your site allows public registration with the Subscriber role.Affected if There are Subscriber role users on the site - these users could exploit the privilege escalation
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Verify access control is missing or insufficientThis vulnerability requires checking if MainWP properly enforces role-based access control. Without the patch in versions above 6.1.1, Subscriber role users can access administrative functions. The presence of MainWP Dashboard functionality accessible to lower-privileged users indicates the vulnerability may be present.Affected if Subscriber users can access MainWP administrative features or API endpoints beyond what the Subscriber role should permit
You are affected if MainWP plugin version is 6.1.1 or lower AND your WordPress site has Subscriber role users who could access functionality beyond their intended permissions.
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.
From vendor dataUpgrade MainWP to a version greater than 6.1.1 which implements proper access control enforcement for subscriber-level users.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 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 $4,512.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-57327 — 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-2026-57327 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