CVE-2023-51416
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 · uneditedCross-Site Request Forgery (CSRF) vulnerability in EnvialoSimple EnvíaloSimple.This issue affects EnvíaloSimple: from n/a through 2.2.
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 confidenceCross-Site Request Forgery (CSRF) vulnerability in the EnvíaloSimple WordPress plugin allows attackers to induce authenticated users to perform unwanted actions (such as modifying plugin settings or sending emails) via crafted requests. The lack of proper CSRF tokens or origin validation in state-changing operations enables this attack vector.
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
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
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 EnvíaloSimple plugin is installedNavigate to WordPress admin dashboard, go to Plugins section, and verify EnvíaloSimple plugin is present and activeAffected if The plugin is installed and active in WordPress
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Identify installed plugin versionIn the Plugins list view, locate EnvíaloSimple and record the version number shown in the version columnAffected if Unable to determine affected version range from provided data - compare your version against any official advisory
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Inspect plugin forms for CSRF tokensRight-click any plugin-generated form (settings page, email composition), view page source, and search for hidden input fields named 'nonce', 'CSRF', or '_wpnonce'Affected if Forms lack hidden CSRF token or nonce fields in their HTML
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Check AJAX requests for nonce verificationOpen browser developer tools, go to Network tab, trigger plugin AJAX actions, and examine request headers for 'X-WP-Nonce' or similar nonce verificationAffected if AJAX requests do not include nonce verification headers
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Test Origin/Referer header validationSubmit a state-changing request (such as a settings change) with a mismatched or missing Origin header using a tool like curl or Burp Suite, observe if the request is acceptedAffected if Server accepts requests without validating Origin or Referer headers
Environment is affected if EnvíaloSimple plugin is active AND forms/AJAX endpoints lack CSRF token verification AND server does not validate Origin/Referer headers on state-changing operations.
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 anti-CSRF tokens for all state-changing operations (forms, AJAX endpoints), validate Origin/Referer headers server-side, and apply SameSite attribute to session cookies to prevent cross-site request forgery.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-51416 — 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-2023-51416 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