CVE-2026-57812
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 · uneditedMissing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through <= 1.6.12.4.
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 · moderate confidenceThis is a Missing Authorization vulnerability in the Simply Schedule Appointments WordPress plugin. The issue allows attackers to exploit incorrectly configured access control security levels, likely enabling unauthorized access to administrative functions or sensitive data that should require higher privileges.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 plugin installationNavigate to WordPress admin > Plugins and verify Simply Schedule Appointments is installed and active, or check the plugins directory /wp-content/plugins/simply-schedule-appointments/ for the plugin filesAffected if The plugin is installed and active in the WordPress environment
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Identify installed versionCheck the plugin version by viewing the main plugin file header (e.g., simply-schedule-appointments.php) or in WordPress admin > Plugins > Simply Schedule AppointmentsAffected if Version cannot be determined or falls within a vulnerable version range (compare against any official security advisories)
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Review plugin capability configurationsExamine the plugin source code for capability requirements on sensitive functions. Look for add_action or add_filter calls that register AJAX handlers, admin pages, or API endpoints. Check if they include proper capability checks like current_user_can() or user_can()Affected if Sensitive functions lack capability checks or use overly permissive capability requirements (e.g., only checking for subscriber-level access)
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Test unauthorized endpoint accessUsing a low-privilege user account (e.g., subscriber), attempt to access plugin admin pages, AJAX endpoints, or REST API routes exposed by the plugin. Intercept requests with a proxy tool to observe responsesAffected if Low-privilege users can access administrative functions, modify appointments, or retrieve sensitive data that should require higher privileges
A user is affected if the Simply Schedule Appointments plugin is installed and sensitive endpoints or administrative functions are accessible without proper capability verification.
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 dataImplement proper authorization checks (capability verification and nonce validation) on all sensitive plugin endpoints and functions to ensure users can only access resources they are authorized to access.
- Consultation3.0 h
- Implementation12.0 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 $6,720.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-57812 — 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-2026-57812 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